Went out and watched an IDPA match a few weeks ago. Most of the ones I watched had 45's and 5 inch barrels. I left about two hours into the match as my black leather shoes in the 95+ degree heat and no breeze where beginning to melt my feet. A few days later I went out and bought some white tennis shoes. At least half the group I was with were shooting expert class. But what the hell, I'm gonna start shooting with them cause I can use the experience for CCW. Fun and practice.