Decompiling? Do you mean decomposing composites? I saw something recently saying it was no longer necessary to decompose composite glyphs in OT PS fonts. Can't remember where. Definitely need to remove overlaps, which would apply to composites as well I presume.
I have a little FontLab action set for OT-PS that removes all hints, decomposes all composites, and auto-hints. I run it on a temporary file as part of font generation.
Comments
FL preferences > Generating OpenType & TrueType > OpenType PS (.otf) > Decompose all composites