I thought the Whisperflo was perfect too (3/4HP) but really wanted to go to a 220V motor just because they tend to run a bit cooler. Wether or not it really makes a big difference, I don't know.

Other option is the 1HP Superflo which will flow about 55GPM. I hope after all this research the Supeflo is a good pump I Would really consider the 3/4 110 Whisper if someone can convince me there is no major reason to go to 220V. Less wiring I have to do.

Thanks!
Joe