We used to run a 268 SeaRay. We did install a Doel-Fin and It did make a
difference. The boat also had Trim Tabs, which I think are also very
important on a boat of this size. The biggest thing to check is how your
boat is propped. Are you at the upper or lower limits of your RPM range.
If you are at the lower limits, try going down a couple of pitches. This
will help you plan faster. ( I think we were running a 12 Pitch, when we
were loaded for a trip) with a 260 Merc. I/O)
Hope this helps
> I just bought a 28 foot Wellcraft Prima with a 7.4L Mercrusier and
> Bravo 2 leg. It seems to take forever to get up on plane and i'm
> wondering if a doel-fin or some thing similar will make any
> improvement. Any one try one on a similar sized boat? Thanks in
> advance for any responses.