Golf technology actually changes and you are at a disadvantage using old tech. Tennis not so much.
I mean I guess there is some tech that makes a difference. The move to graphite, Wilson's "Perimeter Weighting System."
But, I don't think anybody really believes karophite black or ncode injected graphite as materials is making any sort of real difference. Or that the "Flex Point" is cupping the ball more.
I'm a poser and a wannabe but still probably better than you.