Hmm all this messing around with engine height does put me off a bit.
If I do manage to get an aerotec, I'll be looking to pick brains on here as to best way to deal with the splash.
It's not only Aerotec's that require tweaking engine height and trim.....all boats benefit, so don't let this put you off one.
As mentioned previously, we seem to get best results with AV plate about 10mm below keel. High enough to reduce drag from lower leg but low enough to limit ventilation to occasionally out of tight turns. Good for us in swell and chop, two up and often towing kneeboard or wakeboard.
Really is worth all the faffing, and you only have to do it once. Best and most exciting method is to hang over back of transom at WOT and look at water flow over lower leg / AV plate. A Go Pro on a stick also works, but much less exhilarating!
A few combo's here all with same 20 hp Suzuki motor.
Aerotec 365 (current stubby cone 380)
25mm spacer block on transom
Trim position 4 of 5.
Zodiac Zoom 350
20mm spacer block on transom
Trim position 3 of 5
10mm spacer block on transom.
Trim position 2 of 5
F-Rib really easy to set up as very clean/consistent water flow off hard hull.