Hitman, what you say could very well be correct if a person was talking about "extremely fast" twist changes. However, the changes I am contemplating are not to be considered "fast". I also realize and am well aware that every so often someone comes along extolling the virtues of gain twist rifling.
I have spent considerable time, effort, and expertise into an idea that I have about "Gain Twist" barrels and there use. The only problem I am now having is finding a company that can perform "Gain Twist" in 45 caliber! A search of the internet has not come up with a company that is tooled to work at that caliber.
I appreciate your consern, but I am sure I know what I am doing. If not, "nothing ventured, nothing gained".