Yeah like I believe it would be best if you could either
A) While sliding halfway down a slide, to press spacebar and then jump along with your momentum
B) While sliding flat on the ground to let go of the slide button to start walking
Thing is though I'm not sure how it would make sense to stop sliding if you let go of the slide button on a cliff or whatever, you'd have to make the call on how it would feel like because it doesn't make much sense to just stop out right.
Jumping mid slide makes perfect sense to me though, as for how much is the "right" angle for it idk it would need testing. Great stuff overall, wish we had more maps to mess around with. The hanging bar mechanic feels good but it does get weird if you do some instant turns 100 degree's or so, idk that's all I don't think it needs changing atm