I ride a mix of old and new style C kites, having learnt on C's then onto bows and back to C's.
There is more technique to jumping C kites, theres alot more timing and edging involved to get a decent jump. I find if I send it from low down (this is common with all kites - the lower the start postion the higher the jump
) edge hard and send it back past 12 - then release my edge but at the same time send the kite straight up back towards 12 I get a decent amount of height on my jumps.
With a bow you dont need much technique to jump, just keep the kite high, edge and pull the bar in, I see that even the IKO now teach this method of jumping
But...........if you combine the 2, i.e. C style jumping technique with bow style kites you can really get some height
Bow kites do have a lot more lift and power than equivalent sized C kites but 80% of people lack the technique to get the best out of them. The biggest I've ever been is on my old 9M 2007 Waroo, man that thing boosted high.
Then the other thing is to combine all this together with a boost off a wave...............now that's the best way to jump
The main difference is the sheeting, with bow kites you sheet in to get the boost, with C kites its down more to technique.