I am not sure what you are trying to tune.. But this guy is the king of the bull pups . I would trust this guy tuning my Mothers gun,,, He is just building this wed site, http://sniperlabyo-precision-airguns.com/ Mike
I have John Thomas, AKA, John in Pa, tune several R9s for me and I have always been pleased with his work. [email protected] Never heard any talk about him doing anything but springers..
I second Bwalton....send it back to AOA and see what's going on, but accuracy is a word that can be interpreted different for different people. What are you trying to achieve? For just regular tunes I have always used Will Piatt. https://sites.google.com/site/saddlemountaingunsmith/ He is good and prices are very fair.