The Zoom MS-60B looks fantastic and would be ideal as a sonic palette for some duo work I'm rehearsing for at the moment. This would be the main use of the pedal for me. On the other hand, the Zoom MS-100BT looks like it can cover the same ground + double up for guitar duties when I switch to drums and the guitarist and I rehearse silently using headphones and an electronic drum kit. The MS-60B is $99 US and the MS-100BT is $149 + the cost of the bass amps and FX, which could add to the cost significantly. Is the MS-100BT worth it? Anyone using the MS-100BT for bass and guitar duties?