I tried a reg, I got a lower ES, and more power with Bob's tune.
A friend of mine used that reg,many many problems.He got one from Audrius and all good.
Quote from: Bwalton on October 23, 2014, 10:18:38 PMI tried a reg, I got a lower ES, and more power with Bob's tune.Is there a link available to Bob's tune? I might like to try it with my new Hatsan AT44 Short. On a related note anyone ever put together a detailed and complete tutorial on tuning a Hatsan pcp, from polishing the internals to adjusting the hammer spring and weight to changing the ports in the valve etc it would be a great service to this Turkish Airgun Gate Community..
There maybe a simpler way to just tune than the entire gambit shown here. Something like just plugging some ports and adjusting the hammer spring tension. Check with BWalton.