I recently purchased my first sail boat. It is a 1978 Ericson 27 with a volvo engine, there is a hole in the hull where a transducer was which is now gone, i want to simple fiberglass over the hole, I was going to do that tommorrow but someone told me to make sure i use the right resin, i dont know a whole lot about glass work. The local marine store has vinyl ester? and poly ester? resin. Which one would I use? Does anyone know or know where i can find out? I was really hoping to get this done theis weekend so I can launch next week! Thanks in advance!