I’ve been using many non-PG materials to test the capabilities of my GF (I save the PG when I have a final design). My solution to eliminate surface scorch on a budget was to use tracing paper (full pad was only $4) and some Aleen’s repositionable tacky spray (pictured). You only need a super light coat (single pass) and it holds. This stuff has worked very well, as I can remove the remnants as easily as the PG materials and does a fine job at scorch prevention. Hope you find this useful.