There is a refreshing breath of common sense is this article. I decided a long time ago to perform the vast majority of my shooting, including matches, with my carry gun. Thus I’m not into the idea, put forth in this article, of shooting with two guns, your practice gun and your carry gun. For me, they’re the same gun. I believe that, if you want to get really good, eventually you have to settle on one gun, and do, say, 99% of your shooting with that gun. Having said that, as long as both guns have the same trigger action, are the same basic type, I can see no problem with the author’s logic.
https://www.americas1stfreedom.org/articles/2016/7/1/good-better-best-practice/