What I have done is taken my large jacket back frame (Tajima), removed the bolt and got a longer bolt to make the frame wider to accommodate the thicker material. I place my bottom frame on the floor, position the saddle pad on top of that, and then place the top hoop. Once all is in place I take and wrench down the bolt to tighten the frame. It is a pain in the ass but it works. Below is what we have sewn on.