Karal has some friendly conversations over lunch, and does fine with Leareth taking over to talk to people - although it isn't exactly unexpected, since there were people coming up to them who seemed likely to want to speak to Leareth rather than him, so they should still at some point see how he does when it's more sudden.  It looks like people are doing pretty all right at adjusting to the two of them being the same person, too - he was worried that it might be strange and hard to get used to, but he supposes mage-researchers at secret bases are used to strangeness.

He has no objections at all to magic practice and is very much looking forward to it!  And yes, Leareth can definitely stop the explicit schedule confirmations, and Karal can... err on the side of bringing up any complaints he might develop, he supposes, even if they feel unimportant, since whatever the correct balance is they'll get to it faster by having Leareth confirm that things are unimportant than by missing something that isn't.  (Does that sound right?  He could also just not mention anything until he thinks it's an important problem, but he's guessing that will result in Nayoki complaining on his behalf and plausibly in Leareth thinking she's right, so it seems better to skip that part.)  Today he's actively happy with most things they're doing - he doesn't expect most days to be like this, and that will also be fine, but it's nice that this one is.  (He's also pretty obviously just in an unusually good mood regardless of what they're doing.)

He's rather excited about combat magic.  Feeling Leareth quickly and skillfully do incredibly complicated and obviously useful things is one of his favorite new experiences, and sparring will probably make it even better.  Magic in general is lovely.  (And maybe he'll learn something from watching, although he knows that's not the point.)

(Leareth would indeed prefer a few iterations of Karal erring on the side of bringing up things that they decide aren't important, and if both of them conclude this is tedious, Karal can just successively increase his threshold for counting something as important enough.) 

Combat magic! Leareth is being careful about how much power he throws around, since he wants to save lots of energy for both sparring and for not being exhausted when they later do a tundra walk; he's focusing on speed of casting, and he's very, very fast.

...Slower than he used to be or should be, on the more complex techniques like paralysis-spells, which is a lot of the nonlethal self-defense in his repertoire. It won't help to be upset about this, and Leareth mostly isn't. It's taking some amount of ongoing gentle reframing-the-situation to himself to avoid it. 

After a candlemark or so of practice, he at least feels pretty calibrated on his current capabilities, if not entirely happy with where things are. And also ready for a short break, which he's inclined to use walking around the facility to see if anyone is available for sparring, since he didn't think to make plans in advance and cannot actually just Mindspeak all the obvious candidates. 

It still feels amazingly fast and skillful to Karal, of course - he wonders if it's just that most trained mages would feel that way to him, but he suspects not.  It's... he usually feels like he can tell, when he sees someone very good at some skill he doesn't himself have, whether he could have it if he had spent his life on that instead.  Some things feel too alien to have this intuition about, but magic isn't one of them.  And his intuition about magic is that if he had spent his life on it, he could have been very good - could have been the sort of person who ended up here on his own merits, maybe - but he could not be on Leareth's level, and very likely nobody alive could.

Of course "be better than anyone else alive" is not remotely the bar Leareth is aiming for here, nor should he, so this opinion of Karal's is not very relevant and he doesn't try to bring it to Leareth's attention.  He does, maybe more helpfully, think that this still seems much better, and likely to result in getting his full abilities back faster, than being thirteen.  (He briefly wonders how upset and frustrated Leareth usually ends up, when being thirteen.  It seems like it would be awful - and if Karal's emotional reactions were unpleasant for Leareth, a teenage boy's ones are probably much worse.  Not that any of that is the most upsetting aspect of the situation...  But it's not what happened, this time, and he can be glad of that and stop thinking about it without trying to minimize what an awful thing it is, since thinking about it is not helping anything.)

Also he very much thinks they should at some point try sparring with both of them actively doing things.  Not yet - he should get a better feeling for what Leareth can do on his own, and likely the reverse, and they should practice coordinating in easier conditions - but he thinks it will be both a useful skill and a deeply satisfying experience.

In the meantime, yes, they should go look for a sparring-partner.  ...His first thought is that Leareth would presumably know better than him who might be good for this and where they could be found, but that's not true - Leareth-now doesn't know most of these people either, does he.  Well, then, he'll head to the common area and see if anyone there is interested or knows where else to ask.  (Or Leareth can do the walking around and talking to people, of course, if he likes - but Karal's impression has been that he doesn't particularly, and it seems sensible to default to having Karal do this sort of simple thing, given that most of their time will for obvious reasons be spent with Leareth in control.)

And he'll practice putting his thoughts outside of Leareth's shields, in case anyone's routinely reading passersby and might be interested in sparring.  (His instinct is to put all his thoughts out, but he only does this once he's done thinking about Leareth being thirteen.  Remembers a moment later that everyone here is cleared to know about that anyway, but it's still useful to maintain the habit of considering whether he's thinking about something it's a bad idea to broadcast.  He doesn't like it, but that's beside the point-- or, no, he said he would flag probably-unimportant things he doesn't like. Well, here's one of them.)