A friend of mine recently purchased a set of irons secondhand of ebay and was delighted with their condition,we went off to the local range and he was noticing a vast difference with each clubs distance.I suggested putting the set together with the toe`s off the irons up against a wall in iron sequence to check the lengths.WOW even thou they were the same model and shafts the lengths were ridiculously out,the 3 and 4 were the same length,the 9 was 1/4 inch shorter than the PW! and the rest didnt tie in, and thats before checking the lofts and lie`s.We really dont know what we are getting when we buy secondhand off ebay and can only judge by the pics,my advice would be to check for the obvious as soon as you get them so you can send them back cos some of these set ups could seriously ruin your game,remember even the slightest difference in consecutive length will play havoc with distances.