TG is too low volume for my tastes. I prefer a powder where an overload overflows. Hard to miss that.

I've read many comments on TG over the years, and there are enough made about the low volume and burning hot to convince me to stick with my HP-38. Squeezing a few extra rounds out of a pound of powder isn't that important with me as having confidence that a double load won't seat a bullet. I've had next to no leading with my current powder, so why mess with what suits me.