when you say faired over ... do you find that this fairing cracks every year? On 526 and 505 my fiberglass guy ... also on the line at TPI 30 years ago, admitted that the engineering on that was marginal ... he then decided the only way to go was to actually fiberglass the outside of the hull over the strut base.
Yes you need to dig out access inside. Earlier in this thread, I have a photo of the outside fiberglass on 526.