Originally Posted by IBLUBYU
he suggested the possibility of using a silicone sealant that might seal it also. I don't think it would take much. Might go that way .......
That was my secondary consideration if the notching wasn't doable. Guess it's time to get an order in. I can at least play with a few inches of it to see if it will notch and contour, worst case silicon at the mating ends.