TheMeanGreen- I never tried sandwiching the glaze like that. As you figured, the trick would be figuring out the 1st Layer LSP-to-glaze compatibility.
I wouldn`t bother as a) I think that challenge could be daunting, b) I don`t think the underlying LSP layer would contribute anything of significance, and c) you`ll be redoing it often enough that doing any unnecessary extras wouldn`t be worth *my* time.
And I sorta suspect that the *vast* majority of glazes are gonna do their thing best when in direct contact with the paint. Anything that might cause the glaze to "die off" quicker would only hasten the (already likely to be frequent) redos.
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