+1 to everything DSE said - I went through the same thing in the Access in 2009.
Take a moment to breath and relax in flight then think "work your legs" and "work your arms" (i.e. shoulders and upper arms only) - Your head is the accelerator (downwards) and key to forward speed.
An alternative to the "creeper-based position practice" is as Zun would show you and I have used teaching with the INDY is as follows:
1) Stand facing an open door way with your feet about 12" back from the door sill 2) Legs apart as if in the suit 3) Arms out as if in the suit with palms facing forward 4) Stand up on your toes 5) Lean forward towards the door frame such that it is your upper arm resting on the R & L verticals of the door frame 6) Check that your arms are still in line with your torso and torso in line with your legs. You should be working you core/stomach to help hold you in a board like position, pushing up on your toes with straight legs, BUT ultimately your head is lower than your feet. And your chest is a bit pushed out or rather down in the air.
In the INDY you have the large diagonal zip, which you should be able to feel/see the tension on (in the air and on the ground) when you work your whole body from toes to shoulder.
Other point to note: If your core/stomach is a bit weak (just you not working it rather than stength capability), you can get your pelvis moving around in the suit causing a bit of washing from side-to-side in the air.
I'll try and upload some photos in a bit.
Edit - You are in my opinion trying to be flat, in line and head low and don't what to get into the habbit of becoming de-arched or cupped as will loose forward speed making it more difficult to fly with others.
(This post was edited by Titanium_Gecko on Jul 19, 2012, 9:21 AM)