Uncarina roeosliana (need advice)

Hi there, hope this is the correct sub for this. 😉

This summer I finally was brave enough to cut back my little (indoor) Uncarina roeosliana, since it started to grow a bit leggy. I live in Switzerland snd I can't leave it outside in winter.

To my surprise it reacted pretty well to it and is growing 4 new branches on top now.

I thought about cutting it back a second time next year maybe, for it having a stronger base than now. Or would you let it grow on ? I feel like the upper base is a bit too laggy.

Extra question for the cuttling :

I have the cuttling in water since about 3-4 weeks and it still seems healthy. I thinks it's in the "germinstion" phase (hope that's the right term). But I feel like another 2-3 weeks in water would be too long for that kind of plant. So, would you leave it in water and wait for actual roots..or pot it at thus stage ?

Thx a lot.