lazyklimm wrote:I think real drums are recorded this way
They are indeed. But with a virtual instrument, you can do things you can't do with the real thing. I cited one example of adding more overhead mic sound to particular drums, but not all drums. I don't know if the drumgizmo software allows such control, but it theoretically could. So could a Kontakt library. Or an sfz mapping. You're not restricted to doing only what a real mic'ed kit does. It just so happens the sfz mapping you're using mimics a real mic'ed kit, with some of its limits. (And not for no reason. It's easy to understand, and easy to adjust).
When I was talking about how difficult it would be to sfz map the drumgizmo samples for linuxsampler, I was thinking you wanted to control all the "tonal possibilities" of those samples. But things get a whole lot easier if all you want is a map that mimics a real mic setup.
why most commercial drumkits are not premixed?
They are. I think most all come with presets. And I'm sure at least one of those presets is with minimal mic bleed and probably delays to correct phase. All to create a really deep, crisp sounding kit with a wide stereo soundstage. That may not be the only sound you want. Sometimes you want the drums way back in the mix, which you could do with a duller, more compressed sound. Besides, you're paying money, and if they don't give you knobs to move, how else are you supposed to know whether you got your money's worth?