Maybe you already know that but... I've noticed that it is enough to delete

PMDG_ACS.gau file from Gauges folder of FS9 and ALL PMDG (600/700/800/900)
work with PM MCP without any problems and without Bob Scott's patch (which
by the way is not available for 800/900).

If any of you have already tried that - do you see any bugs in this
particular solution?

Ciao - Michal