Well Ken, it is funny that you should start this thread, as I have done that exact thing.
I was up to about 17 at one time.
I switched from right to left, as you know from our past dealings.
I decided when I made the switch that I would stay with pretty much one bowyer. I had two bows made at one time so I would have two different lengths and still have the limbs interchange. It worked out well. I now am down to just four Schafers, and one Widow.
I did it, and am happy about it.
BTW- The grip on the silvertips and standard grip on the widow are very close.
I still have to restrain myself from time to time when I look at the classifieds, but again, I am happy with the decision.