Bingo...I definitely agree on the layup helping with the damage. In my opinion filling is a band aid. Grinding back the glass and re-laminating that area would have been the correct way to fix.
And since the hull is vinylester resin I would have used the same to repair it. But for most people epoxy is a better choice because of it's secondary bonding characteristics.
Good call on the resin, I wasn't sure what was used with the hull originally so I stuck with epoxy. I completely understand where your coming from with filling just being a band aid. I didn't want to change the outer surface on one side of the ski so I decided to use the layer of carbon as a filler along with thickened resin and then reinforce from the inside to get the strength back. I did grind back the glass and repair the area, but your saying it would have been better to lay-up all the way down across the rail?
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