Dear Tennis players, how do you hold a racket when serving? I’ve been told to put my knuckles on notch (is that what it’s called?) 2 When serving but I feel much more comfortable when putting my knuckles on notch 4.
Pls help

Jen is reviewing information about a new treatment for arthritis pain that she saw on an informational website. most of the information is testimonials from satisfied users. which best indicates that this information is unreliable? it is not paid for by product sponsors. it is on a website that is not run by professionals. its claims are based mostly on anecdotal evidence. its claims are not supported by the provided information.