Tried for my first time today to put JB in a oversized mold and put a jig inside of it and try to duplicate it. What a friggin mess. It took a good hour for the JB to set up. It said 4 minutes on the package, I wonder if it was old stuff? Anyway how do you keep it from sticking to the jig you are trying to duplicate? How do you keep the do it mold in separate halves because when you clamp it together the jb sticks on both sides and then strings out when you separate them. I'm going to try some new jb and see if things go any better. I just joined this sight and love all the insight you guys have. Just want to get through this first project before I try stepping up to the next one. Thanks for any help.