Pro’s specs “secrets”

I’ve gotten into golf recently and from watching interviews/reading you can readily find most of the custom specs the pros use. Which got me thinking, why are pros specs such a secret in tennis? Like, who made the decision one day “okay we can customize it for you, but no one can know how or what we did”. Do they really think tennis players are that naive to think pros use off the shelf racquets or is golf pros/fandom relationship just different.

I know we discuss pro specs everyday but I’m...

Pro’s specs “secrets”