The turn fin should help a little trim tabs too. With a submerged drive at high speed and the shallow vee hull it's going to be a hand full.
Since you got the bug for boats you may want to consider the new SV 27R great boat right out of the box just add a Lipo shield and lipos
and you have a boat that will go 40 + with a little work 50 I own two of the earlier ones that have been modified and love them. Check out this link
http://forums.offshoreelectrics.com/...ad.php?t=11601
I also own a Hydro called a Vac-U-Pickle that run 45+ the boat ROCKS
http://forums.offshoreelectrics.com/...ad.php?t=15304
Good luck Wiz