Okay, I was thinking flat as well and by the posts
I am leaning that way now.
Now how do know where is best?
Is it like angled tabs, just slightly above bottom on outside edge but then continue staight across?

Angled works fine for me. I'm sure it's not going to make a ton of difference unless your racing. For the occasional rough water adventure and cruising around I can't imagine you going wrong either way.

Race boat is this way.
http://img690.imageshack.us/img690/5686/90761116.jpg

The same way on the Monza.
http://img9.imageshack.us/img9/7173/80111996.jpg

I put mine on a angle. They work good for what I use it for. I have them 3/4" above the bottom edge.

Please note: Your boat will also chine walk at max trim if you have ANY SLOP OR MOVEMENT of the outdrive (in any direction). You should have full hydraulic steering and make sure every pivot point is tight with no play.

Well I have a question since everyone is talking about trim tabs. I wanted to put some trim tabs on my 28' cat and the shop said it isn't a good idea on the smaller cats, that you don't get much out of them and can cause me more problems then it is worth. He said something about tripping the boat up and said if I didn't really know what I was doing they could get me into alot of trouble and fast with that size cat. What do you guys think?? I wanted them more for looks then anything because I think boats look really cool with them.

Anyone have pictures of tabs mounted flat?

Dude, WHAT? GET REAL!!!!!!:eek::eek::angry-smiley-038:

Just check out the transom of about any Fountain built in the last 4 years or so.

What's your problem?? Why do people like you always have to talk s**t and try to start something?? You couldn't just try to help and answer the question.