I was able to get out again on sunday . I was full of fuel , 1 passenger , 69 mph . I think my drive was at 4 tabs at 3 . i think i will hit 70 with a little more time .. It felt stable and I was out for about 4 hours running it before i took aboard a passenger .. I feel a lot more comfortable with the controls and I am getting used to trimming and tab placement .

Me Too!
 

I just bought a 99' 27 Fountain. Only had it out for the test drive, but already impressed with it. This is not my first boat, but the fastest one yet, so it will take a little getting used to. Hopefully I'll have some numbers to post after I get it out this weekend. (Stock 502 Mag)

We put the mufflers from REX marine in our fountain and love them you can just slide them in the exaust hose and ride they are only 119.00 per pair...

Got out again yesterday for a pretty good ride. I agree with smokediver, tabs around 3 and drive at 4 proved the best handling with a light to moderate chop. 3/4 fuel and one passenger....69 on GPS. Rides like a dream up to about 65, but gets a little hairy when you jam the stick and pick up the tabs to pick up the few extra mph.
(23P labbed Hydromotive)