WOW
Nice work goes into that jig. Tony - and no surprises later when you have to reach in there to clean the tank out.
In fact your design makes it easy to pull maintenance on that nice s m o o t h interior
without any surprises in the overhead fillet work that can leave snags and hollows and ridges because it's almost impossible to lay in a wet cove unseen and upside down.
Great solution!:cool: