A. Learn the definition of "endorse" and be clear about who endorses and who is endorsed. You wouldn't confuse who employs and who is employed would you?
B. Learn to use the TB search function. There are lots of good and practical discussions of this, primarily in "Bassists" and "Miscellaneous".
Spelling, grammar, and punctuation matter
"Without space, music is just noise piling up on itself." TRK
"Don't play your instrument, play music." Feral Feline
Lakland Owners' Club #248