Been using a little 61 Hammond SK1 over a piano for 5 years, with great success. I use a Motion Sound top box with it. Still occasionally use a real B for sentimental reasons (and, the club let's me store it there), and a 147 RV, but the drawbars, WEIGHT and availability of other sounds and good left hand bass access makes this a really good combo.

Works for me!

R.