Well yesterday afternoon, I decided that I would just get the G20 fullsize. A buddy of mine who's wife is a Eureka Police Officer in Eureka Mt here, and although there is quite a size differance between her and I, me being the bigger of the two, she carries her personnal G21 full size with no problems. She actually prefered the fullsize over the SF model.
So I now have the fullsize because it was available, and it may take getting used to the larger frame, but it is very workable.