Ok- I've had both Seek and Stepper. I also live in Chicago and grew up on ACID House since the age of 8. Always have been seeking Acid and somehow ended up playing live shows with my Euroracks at 41. I use the Stepper and M303 for that sound after trying countless sequencers. The Stepper hands-down is the show killer. Its got "live", "song" and "detach" modes! The Seek is fun but lacks these. Do the Stepper. The slide is adjustable as well.

Robotmanmachine