Test with TB 303 bassline.
Download this Exports.zip (4.2 MB) if you that to try.
8 samples, Plocked on 1 bar, each 2 steps.
Scene A = Slice 1
Scene B = Slice 17
Add delay. Move crossfader slowly.
Original bassline :
Roland TB 303 Bassline - Quick Audio Comparison test
http://www.acidvoice.com/#best_clones