Has anyone done this?
How to Fix the H.264 Gamma Shift Bug in Quicktime FOREVER
Avoid QuiRcktime at all costs and you are never hit by its quirks.
That's what I do.
I eventually dropped QT like a hot potato when I shifted to a PC.
I now master to MXF OP1a AVC-I. And I use the MP4 H.264 codec which looks better then the QT version and still will play on a QT players.