Best Breaststroke "Feel" Drills

I guess Jeff and Carrie and Allen will have to answer this since there are a lot of non-breaststrokers out there.:wave: The fastest breaststroker on our team always does breaststroke fist drill in meet warmups to find his stroke and ensure a good swim. I've tried it and think it's a good drill, but it doesn't seem to be the predictor of a great day for me that it is for him. Does anyone else have something they rely on that I might steal? Breaststroke is such a finesse stroke that it would be nice to have something to help everything click in even when I'm nervous. Thanks for any wisdom in advance!