Frank:

I did not have the Mavericks, but the SST carbons. Some of them were way out as far as wall thickness/concentricity.

Allen - I can relate to checking them for damage, as it often is not too apparent. I had one arrow that started shooting to the right for me no matter what I did. I decided to put a new nock on it to see if that would help. Taking the nock off revealed a nice crack in the back of the arrow that I absolutely could not see before with the nock on. I'm sure I lucked out shooting that arrow that way for so many shots.[:-]