I have a SA-E11 Edge, gun has been great so far! The spring fitted (M90) was on the low side of FPS, getting around 295-310, so I swapped it for the 'factory' spring (M110). Now the FPS is a little hot, consistently shooting around 370-375.
I bought a ASG M105 spring to try hit the sweetspot... Fitted the spring and ran it through the chrono. Gun was shooting perfectly at 343-345 FPS! The day after I attended a skirmish at my local site, took the gun to chrono station and it wasn't working correctly. Looked like it was over feeding BB's, some shots wouldnt go past 10 meters, BB's were dropping off horribly. FPS was going from 190 up to 300, horribly inconsistent!
Took the M105 out, checked it and put it back in... still the same issue! Then put the M110 back in the gun and it worked fine (but was too hot for the site)? I did notice the M105 was maybe 3-4cm Longer than the M110....
Does anyone know why the M105 might be causing the issues I had?