on 505 and 526 used two- two foot stainless steel handrails from WM on each side. On both original decks one or two of the through bolts from the top rail to the inside handgrab broke ... I didn't want to repeat that engineering fault. (an alternative is probably just to use a one size larger bolt) Or not have heavy crew do things on the deck that require using the hand rails as foot supports.

So now I have 9 holes ... five original to retain the grab rail inside the boat backed by fender washers on the deck... and four backed by fender washers for the 2 2ft SS rails in the cabin {each side}