I have sent to Johnny Groth a few times now, and I have always been happy with the results. This time, I sent a 1951 Topps Blue Back to him, and got it back signed. I only have three signed Blue Backs, because there aren't many players left living who were in that set.
I mailed to Groth on March 4 and got the card back o n March 18, for a 14-day TAT. I paid his fee of $5.00.