Hi- I own a Warwick Streamer Stage II and I'm looking to replace the stock MEC pre-amp and pickups with a STC-3a and probably the AJB-5s basslines. I want the sound of the STC-3a, but I want to keep the control layout and options that exist on the bass as it is stock. My only complaint with what I've read about the STC-3a so far is that when it is installed, my bass is no longer able to play passive. The current (stock) pot configuration on the bass is 1. (stacked) Volume/blend with push pull passive/active mode switch 2. Bass 3. Mid 4. Treble I want to keep the option of switching between passive and active, but I do not want to install a mini toggle or do any sort of modification to my bass. Has anyone had the same goals and maybe success in modifying the preamp? Can SD produce a custom order for me? Any help is greatly appreciated! Thanks!