Did anyone ever do a review/comparison between these two different models? In theory, the 250k should be better for passive bass, 25k better for active, but what if I A/B between both constantly? I'm in the market for a volume pedal for a few reasons, and I'd like to know which is best suited for bass. I'll be using mainly an 18v active Marcus 5er, passive J basses, and passive P bass. Which route should I go? I was talking with a knowledgeable player last week that my band opened for who was running a 250k (passive) VP Junior with his active Zon 5er. He said it works great for him. What's the deal!?