Not sure if i will even bother trying them with tape in that case :( - just speaking to a local firm about getting some jigs made - the ones from sublimania work well - until they warp :(The fronts print great though
Plus the tape I use actually peels off super easy when its been heated so its not the tape issue
They feel slightly thinner than the old unisub but they do not warp or bend.
Its just the backing peeling as i tried 6 coasters and each had it
So i dont think i will use them