Cut a little over 1 coil off 1 end and then bent it flat to rest against the tube cap. With an 8" brass barrel and this spring my Aeon Pro is hitting 210fps extremely consistantly with a firm but smooth prime. I also had to clearance the trigger just a little to give it a little more travel in order to release the catch propperly. Had tried this previously with 18kg worker spring and only shot 160fps so this spring has a much better fit and performance.
After receiving this spring I was concerned about the lack of coils on the spring.it did increase my fps by 30 or roughly 15% in my longshot Omega kit from my 16kg it came with, but the prime felt the same. So it does work, but not impressed with this spring at all.
On the picture of the spring, top left it says 14kg. Was it a mistake?
Its been two weeks and my order still hasn't showed up, I'm assuming this is just a one-time thing, because the service and shipping from OOD is usually amazing. But as for this order, a little disappointed