Hi!! I followed Kerby's gaboon viper tutorial to carcass cast a snake(a ball python)..everything went well and now I have my foam form covered with bondo. I did not sanded it yet and I am planning to add more bondo to get a good base(while sanding, i dont want go get to the foam). My question is: after sanding and giving it a first test fit, If my form is too small, should i add more bondo and sand it back or i can rebuilt some muscle with clay or apoxy sculpt??What is the best way of adding muscle to a bondo covered form? Does any of you can share some experience about that issue? I did not took any mesurement :-[ and i am scared to sand it witch takes a lot of elbow grease to end up with a too small form. I worked very hard on that snake , wich is my first. Sorry form my spelling since english is not my first language. Merci!