Eddie,
I pretty much do the same as you when it comes to styles, however, in addition to loading about 20 styles, I also load a custom MFD for the job, which essentially eliminates more than two to three seconds between songs. Using this technique, the MFD can then access the keyboar's user memory and with two pushes of the button, you're ready for the next number. I don't know about anyone else, but it's pretty rare for someone to play more than a dozen songs during a single, 45 to 50 minute set.
BTW, last night I loaded 66 styles on a single floppy disk, all of which were outstanding. I still have lots of space available on the floppy to add the OTS for each style. The only drawback is that you cannot access the floppy from the MFD settings, but access and loading time through the user style slot is a matter of two to three seconds--not a problem in keeping the folks on the dance floor.
Cheers,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)