People are as different as the molds are and if a mold and process works for you, I'm all for you using it. Developing confidence and trust in a making bait goes a long way in having confidence in it catching fish. This is especially true when making bait colors that are not available commercially.
With the exception of the Go-Go Grub, I'll note here that I am not, as a rule, much of a smaller twister tail bait fan, while I do have molds for, and use, much larger twister tails as bass, walleye and pike baits. If I find myself wanting or needing a few small twisters, I'll usually just dip into my buddy's supply and pay him for what I use.