I've had the Metropolis for awhile and the Stepper Acid for a month or two, both solid sequencers, you may be thinking of my other rack (designed atm for ambient) which is currently "No Sequencer" unless you count a Tirana II. Gated slew is a big plus for Acid, I'd also recommend to get as many trigger sequencers as you can, you will find you want a lot of em... for the single voice patch above I used every out on the PNW and the Algorhythm both! Hopefully Crow will help there a bit once I finally plug it in here...