Advice needed... PLEASE!

Hey guys!
I have a little dilema.... I currently have 2 boards:
6'8 Sam Egan Shortboard, and a bloody thick 6'2 fish.
I really want to get a shorter shortboard, sumthing which is really loose in the tail that i can throw around and start learning really sharp cutbacks.
Do you guys think i should trade in the fish and get a 6'0-6'2 REAL shortboard? or stick with the fish? Cus it really wanna start power surfing..... like getting into the cutbacks and roundhouses, but i cant turn that good with a thick board.
I am:
6 foot, 70kg, and i am just starting to learn backhand cutties.
I surf at bondi mostly.
PLease i need advice!
Cheers!
I have a little dilema.... I currently have 2 boards:
6'8 Sam Egan Shortboard, and a bloody thick 6'2 fish.
I really want to get a shorter shortboard, sumthing which is really loose in the tail that i can throw around and start learning really sharp cutbacks.
Do you guys think i should trade in the fish and get a 6'0-6'2 REAL shortboard? or stick with the fish? Cus it really wanna start power surfing..... like getting into the cutbacks and roundhouses, but i cant turn that good with a thick board.
I am:
6 foot, 70kg, and i am just starting to learn backhand cutties.
I surf at bondi mostly.
PLease i need advice!
Cheers!