I have the Omega too and like it a lot. I have all my rifles set up with their QD flash hiders or brakes, and use it on 6.5 Creedmoor, .308, 6.8 SPC, 5.56, and .300 BO. It is pretty light for a .30 can, having a titanium tube. As much as I like it, I am intrigued by the new OSS cans and their apparent lack of significant back pressure increase. I would give them a good hard look too if I was in the market for another .30 can right now.
I too have an Omega and love it. It makes my 308s quieter than my 5.56 can makes my 223s. With sub sonic Remington factory 220 SMKs it is stupid quiet from an 8.5 barrel. I can't recommend the Omega enough. I have a 2nd one paid for and waiting on paperwork.