Looking for some advice on locking set screws in my fiberglass stern tube. This is for the Cutless Bearing (dimpled). Since the the threads are fiberglass, I'm concerned that Lock-tite will clog the threads and create problem the next time I have to replace. I have a product called Vibra-Tite VC-3 and wondering if anyone knows if this might be appropriate or has experience with the product? Any other suggestions would be greatly appreciated! Thanks in advance...