A Photo & Discussion Forum for Wharram Design Enthusiasts
Posting a diagram or drawing would no doubt explain things best. But I’ll have another go in words –
What I suggeat is to glue and bolt a piece of 2x3” hardwood onto each stem, from deck level down to near waterline. The leading edge(of these false stem pieces) can be radiuses or shaped to cut wateras well as the blunt Wharram stems.
Looking at these fals stems as being similar to the mooring cleat bolted to the deck (in your pics on this thread) might give the picture.
Just as there is a bolt fastening the cleat where the line fasten’s, so there should be bolts wherever fastening points are placed on the false stems.