^^ For loud shows, I just set the gain on the recorder so that the output of the mics at max SPL (the 1% THD point, actually) will be just below the recorder's overload point. Then I put the limiter on for a little added safety. I have recorded disturbingly loud shows that way with no issue. For quieter shows, I up the gain but try to err on the conservative side. Frankly, I am pretty happy with my recorder and really don't see the need to change for the sake of 32-bit, even with SD's patented (and pretty clever, if I read the application correctly) method. By the time I feel the need to upgrade, they will probably all have this feature...