I did the Eleanor Burns app'd quilt and used the light weight fusible interfacing like is used in garments---I think that's what she uses??? Anyway, was quite successful and really enjoyed the process. Lightly fused the turned pieces to my blocks and then hand stitched them down. I liked the look--not any noticable bulk. I think you could use most any light weight material for sewing & turning--and then just glue stick to place them until stitched. But I think they MUST be sewn rather than depend on the fusing to hold thru laundering & use. The products you mention DO sound a bit stiff for turning after sewing.