Not too bad. The problem with outboards on a longish yacht is that any pitching either lifts the prop out of the
water or in a worst case scenario dunks the power
head. Not a problem if the
boat is used on calm
water only. When this isn't the case, a typical approach to minimise this is to keep the
outboard as close to the transom as possible. This can be done by using a sliding mount that also gives height adjustment for different situations. It probably reduces torsional load on the transom as well.