From older postings on Hobie rudders: reepoxy the crack, then add a 1 inch x 5 inch piece of Kevlar tape. It will never split again.
If you do this when new, it will never ever split.
Dacarls:
A-class USA 196, USA 21, H18, H16
"Nothing that's any good works by itself. You got to make the damn thing work"- Thomas Edison
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