Ian, I haven't played any other Roland with the same action yet. Admittedly, I haven't seen a Jupiter yet, but I've played some of the Juno's...not even close!

I wasn't all that impressed with the BK3 and BK-5 actions. Admittedly, they still felt better than a PSR, but nothing like the BK-9. That is crisp, precise, and quite a pleasure to play.