Erm, I have an MC202 and Freebass. Neither have presets or the ability to save sounds (which is a real downer sometimes).

My other stuff - Alpha Juno, Sid Station - I tweak the hell out of constantly, the Alpha is a pain though as the parameter editting is a nightmare through the buttons/tiny window.

I think I should try contrain myself to writting more notes and tweaking sounds less - I never usually seem to get past 4 bar repeating patterns, tweaking sliders/knobs, messing with effects. My neighbours must hate me - there goes that kick drum and a slowly modifying synth line again, ad infinitum...

Actually when I do get to writing patterns I have the opposite problem, I can't go for more than a 4 bar repeating pattern without messing with the notes, etc. Trying to make new variations on the patterns...

Arrrgh!!!