I used to do that, but switched to keeping those sounds handy in my user area. This allowed me to see them all on one screen and quickly select from the list with a single button push and not having to remember which registration they were stored in. I only have 13 voices that I tuned and tweaked, but on average, I usually only select a couple at most during a song. The user area displays 10 voices on a single page, which makes selection quick and easy.
Gary
(The old guy)
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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.)