I almost use some version of the Tour Velvet. I’ve tried many types and brands over the years, but keep coming back to them. There was a Black Widow something or other that I really liked, but they discontinued that several years ago. It had sort of an aggressive texture to it that I had a love hate relationship with, but my fingers never slipped. Now I just put a skinny shush kabob stick at 6 o’clock under every grip as a reminder and those Tour Velvets do the trick.