harry potter said...
Bow and C kites require different approaches to boosting big.....
IME the C Kite relies more on the pendulum effect .... ie: send the kite harder and swing up and under before bringing it back...... you cannot rely as heavily on just sheeting in for lift as you can on Bow/hybrid kites ....
practice your timing and you will be boosting big in no time
Exactly my experience when I moved onto c4's (queue lots of people missing the point by discussing whether or not the c4 is a c kite)