My wife was ready to buy a Zumo 550, but we are no longer able to find any new. So, we're wondering what the best choice is among the 220, 350LM, and 660. The 220 is a whole lot less money, but the screen is pretty small. The reviews of the 350LM and 660 don't seem to be quite as good as feedback on the 550 was. We've got Scala riders, so bluetooth performance is important, and we'll be mounting it to a BRP Spyder with a Kewlmetal bracket, as shown.