I think what he was asking is that outside of the special mode, do you still use the other buttons for ollies, grabs, spins, flips-tricks, etc. or is it solely double-sticks for everything?
If you still use those other buttons, how smooth does it feel to switch control to the analog sticks when changing into Nail the Trick mode? It seems as if this would be a bit incongruous and possibly confusing as well as a challenge for those of us who were already spazzing out trying to hit buttons quickly enough.
For Nail the Trick you have to use the analog sticks. You 'simulate' your feet with both the sticks so there really is no other way. Realize that Nail the Trick moves considerably slower than normal speed, so you won't be breaking the controller tryin to switch from one control method to the other.