Tried EVERYTHING with Backroll.. HELP!! (vid)

Hey Guys... I feel bad posting about this.. since I'm sure theres every tip out there imaginable somewhere on the web... but here it is again...

I need help with my Backroll..

So i started throwing my backrolls about 4 months ago with a strong body position with a tall, very progressive, short cut. I learned to load and release out in the flats in a tall position with my back straight, legs stiff and hips pushed up towards the sky... handle low...
I would drift towards the wake, wait till the white wash load and release at the wake... i took a vid of myself and the roll looks real smooth... but I never get any height so i never make it around.... (i accidently delted the vid) what i dont understand is how am I supposed to stand tall and pop when I'm leaning against the line when im standing tall already with my hips pushed up already? My back is slightly arched when I load the line and so I would have to let off edge so im not leaning away from the boat so much to stand taller but that kills my load and then I eat it...

so I decided to try and throw my roll from a seated load position... heres what became of it...

http://www.3dchad.com/download/John/CIMG0932.mov

I know the vid isnt the greatest and I know im doing these things wrong in the vid...

my handle is at my chest... theres no sign of a progressive edge... my cut is starting out too far... and im throwing it a bit early... the line tension is gone once in the air... and it just looks ugly overall...

but the point is... i am getting enough height... Ive tried cleaning all these things up... but the line goes slack in the air and i really feel like im working too hard for the roll instead of when i was in a standing tall position... Im seriously getting to a mental block at this point not know whether to go back to a strong tall position with a good looking rotation and not getting any pop, or trying to clean up the seated position load.

really if I can get some help learning how to pop off the wake from a standing tall load i could land it for sure...

please help... thanks guys/gals...