First! (thumb that is...) Beautiful bassline... I've been thinking of experimenting with an SQ-1's gate serving as a clock for the IC. Then the 16 steps would follow a pattern more than being a straight beat. Not that I dislike, but I think it may increase the ability to make variation.
I don't... The primary thing to remember is that in a lot of ways this instrument is all about the filter... (and an overdrive on it) and the mysterious sequencer interaction on it. It makes subtle changes very interesting.