I already have a Circuit but the back length is a large so it is just a bit too long otherwise I would be happy with that. A medium hipbelt for the Circuit is fine for me but the Ohm medium hibelt is much shorter and too short for me, I was going to try and modify Jim's if I bought it.
Would be interested in the Conduit if it was the right size, but does the lack of load lifters on the straps, mean it is a less comfortable carry compared to the Catalyst? Does it push the weight onto your shoulders, I tend to make use of these straps a lot on the Circuit. And of course if the OHM doesn't fit let me know.