Try this, I hope it works. An old post on EC track.
http://forums.deeperblue.net/showthr...enclosed+track
BTW Welcome to DB.
It seems Riffe EC track is not a pure EC track like the rest. I have not hold one....soon. Riffe primary intention is to allow freeshafting, not purely shaft whip control.
Other EC guns have very low tolerance on its EC, tight fitting to shaft. I read somewhere at Adernaline Forum that since tight fitting create vacuum when shaft launch out, EC at some point create extra drag. If you see an engine piston moving in a liner, that is the exact vacuum action.....possible...possible..
