Plugging & redrilling Hobie rudders

I have to plug & redrill some Hobie standard rudders.
Does anyone have a technique, material, or thoughts on this process. I may need to redrill close to or in part of the plug.
Thanks, Dave
i have had it done... it is doable. i dont know the exact process... but it is possible.
Hobie sells a metal template that fits on all Hobie rudders and has the exact place to drill or redrill for Hobie rudders and the holes are very close. H-16 rudders with adjustable upper castings are drilled different than H-16 rudders without adjustable upper castings and so on. Your local Hobie dealer should have one of these. I bought one for myself years ago and was happy that I did and so are my friends.
Bare in mind that resin will not stick to plastic. On my G-Cat rudder holes I taped one side and carefully located the center of the enlarged hole. Wrapped plastic tape around a dowel of the right size, held it in place, and poured the resin around it. When it hardened the dowel came out easily and the hole was perfect.