I was perusing my Mailbag database, and I noticed that I have had a pretty good success rate over the past year. I decided to share my success rate for 2009. Hopefully this will continue to improve as the successes keep piling up!
Mailings - I sent 255 requests in 2009, and thus far have received 190 successful returns. That gives me a success rate of 75%. Not bad!
Total items - I sent 546 items in 2009, and as of today 427 of them have been returned to me signed. That comes out to a 78% success rate.
My quickest returns were from Chris Knapp and Roberto Hernandez. In both cases I had the signed cards in my hands 3 days after mailing!
The slowest return so far was from Orlando Cabrera, which took 224 days. I expect this to change though, as there are always a few returns that show up long after you've given up on them.
I'll be doing my (belated) first mailings of 2010 in the next couple of weeks.