I just used Pellon EK-130 which is a light stabilizer recommended to me. Seemed to work well. Last one I made, I used a stabilizer that was too thick/heavy. made quilting very difficult. I also used sashing that was too wide. Won't make that mistake again.
I have 80 shirts cut and fused already. I want 98 before I start. I am making 2 quilts (one for each son) and the blocks are 9" finished.