Ive got a Proto Rail 2011 which is the successor to the SLG. The SLG was a higher quality marker than the Ion but essentially matched it in capablity. The Rail has worked on that and has come up with a very accurate, easy to use and quiet marker. It isnt particularly advanced but its got all the tournament presets on its board so you'll have ramping. Im looking to move it on for about 130-150 because ive bought an ego. The marker has only had 2 cases through it so its essentially brand new. http://p8ntballer-forums.com/threads/price-drop-on-good-gear-paintball-gear-not-drugs.150121/