RE: prop position
I've been around full size boats alot, and there isn't a puller setup for them...JUST NOT SAFE, for the occupants. Although I wish it was possible....for I believe the pullers give better performance, but a pusher prop will move heavier weights easier.
I have seen my .46 puller outrun a .61 pusher. For me, I like performance, so I prefer the puller setups.