Mastertchris,

Glad to be of any assistance! Glad to help out whenever I can, and share what I know.

I have yet to build a pusher. I'm more of a puller man. I've seen a friend build a 46LA pusher and it performed terrible....barely ran dry. He turned the motor around on the same boat and it out performed the pusher.
Each style prop (pusher/puller) has its pro's and con's.

How long have I been building.....I built my first airboat about 15 years ago, then got out of rc's for a while. I got back into them about 4-5 years ago. And been building steadily for about 3. Alot of my experience comes from the full scale boats. Been around them all my life, I live on a 750 sq. mile lake here in south Florida. I know several guys that build custom boats for a living and several guys that drag race full size boats professionally. One friend's father has held the world record for 4 cylinder aircraft for 6 yrs.
He was clocked at 64 mph in 150' on a dry run. The unlimited class hits 120-130 mph.

Thanks for the compliment. [8D]

You can find some more good info here.
http://rcairboats.net/v-web/bulletin/bb/index.php