Originally Posted by tennis_ocd
Sounds like it's about gamesmanship. Next you can measure his racket, comment on his dampner being in the string bed, shoes too rough for clay court, tennis attire not to club standards, placement of towel, sunglasses reflexing sunlight, type of balls used, stealing a sip of water after 1 game switch, etc. Get into his head and have fun!
1. Racket measurement not needed. 50% of players do not use illegal rackets, nor would know how to obtain them, but 50% footfault.
2. I have sometimes pointed out dampener being placed improperly (outside of a match). But putting the dampener into the right position will have very little psychological impact on the player. The impact of FF enforcement is huge, as several have testified here.
3. I myself don't call FFs in a match when I am playing. I prefer to spread the gossip from the sidelines when other people are playing, to increase the awareness level. Slowly, we will see a transformation in society by non-violent means.