As harry has mentioned, no need to load up and pop, cos u get enough height just from the pull of the kite.
I generally just lift my legs and board then throw my FRONT hand down to the water and find the height to be perfect.
Also, try and get as inverted as possible,,,,,looks a bit better IMO
Can't work out how ur inverting the kite unless ur not completing the loop and the kite is hitting the water??
Maybe get someone to video u to see where u are going wrong.
Keep practicing dude!