Crafty one, sorry, I haven't ever used freezer paper for applique, partly because for a long time I couldn't get some, so I just got stuck in and did it the needleturn way. Elle is definitely doing hers using that method, so she might have a comment on this, but I always say whatever works for you is the best way.
I'm so pleased you found a good way for you - it will make this quilt a lot more pleasurable to get done, won't it.