Another thing, I had tons of fun opening this up and playing with the resonance and envelope knobs. If you do them just right, you get awesome subtle acidic trance sounds. I think the 303 is a little monotonous without something like that to help it. Great Job!
This is great. I love it. Great note selection. I opened it up and I can see why you've got some distorted clipping sounds. The minimixer needs to be turned down until it never goes into the red. Personallly I would swap the minimixer with the crossfader. Then I would swap the Tube D for a Graph EQ to better boost the right frequencies.
I liked the intro better when there was no kick. It hides the syncopation of the melody and doesn't have this surprising feeling anymore. Just my opinion, still great :)