I am thinking about getting another blower for a spare. I have an Echo PB-603 and like it very much. Would it make sense to get another 603 to be able to swap parts in an emergency? I don't care for the 650 because of the throttle placement, I like it right on the handle and, yes, I have used both. Where is the throttle on the Redmax 7001? Would I be better off with a 7001 (seems to be the latest and greatest) and lose the ability to swap parts? Thanks to all, Joel B.