I believe that if it is a Titleist product, you signed a agreement not to discuss it publicly. If it is another manufacturers product, suggest you contact them.

Yes, if asked to do product testing and something is sent to you to test, they do not ask for it back. Mostly the items send for testing are golf balls. Sometimes just a sleeve and sometimes a full box. Other than that, there have been a very small amount of test bags sent out each season. No clubs as those testing opportunities are usually done as an invitation to the testing facilities.

Yes once in a while they may ask you to test a product. Generally you can keep it afterwards but feedback is required and sometimes a zoom call is required.

Cheers