In regards to custom poly boards, heel dents can be good for a while,,, tilll tha board is worn out
weight vs strength is always what we are looking for. Personally I like the feel of polyester/urethane, flex is perfect, durability is average but those sessions when you have your shape and your indents right where you need em{yours} make up those memories of epic boards!
Then they fall to bits!!! arrrggghh!!