Power Pistol. If I was forced to be limited to just one powder, for everything I reload in, this would be it. Plus I like the flash.
You mentioned 2400, not sure if you meant in the 10mm too but I found it groups very well in my 1076 & 1006s (14.5gr/2400 & 165gr JHP). You don't get as much velocity but it works surprising well. I do generally save my 2400 for my large revolver cartridges though.
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Just shot my first 10mm rounds thru my modified 4013 today using P-P. Shot lower than as a 40S&W but I compensated for it.
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