Both MEARS and PSA are great in my opinion. I personally have a tremendous amount of ferspect for Dave Bushing and faith in his expertise when it comes to bats. I have not dealt with Dave alot but the times I have have been great experiences and I have been impressed with his insight.

However, for my money John Taube is the best out there. He has helped me personally with many bats that I have questions about and has always been willing to provide a thoughful second opinion as well as info regarding H&B records. Again, when it comes to bats I don't think that you can go wrong with either so you may want to check prices but I can tell you from personal experience that John Taube (PSA) is one of the best guys in the hobby.

Regards,
Andy