I have been reading some of the advice you have received. I have made two so far and have used a light weight fusible and been very happy with it. Without the stabilizer (fusible) my shirts were curling up on the edges. I did find out one thing that made the second one easier: put the stabilizer on BEFORE you cut the shirt to the exact size. Prep the shirt first by cutting off the sleeves and cut up the back and open it up. Cut off the excess fabric but do not cut to the exact size until the fusible is on. That really helped with the accuracy of the block; less stretching, etc. Good Luck.