Yeah, and also Ray is on here all the time. He's an honest and reputable man too and won't sell you up, he'll tell you what they can and can't do. I'd consider the 9" if you want pure performance and length isn't too big of a deal though, that 9" is still super light. He makes a 6.5 specific can too. The 2" isn't that much in length but it increases the performance a fair bit. A .30 can will also work fine if you want to use it on more than one host. The thread over brakes are short, they work and they also mount the can snugly almost like a plain thread on. You can probably sell your other mount online.
If it's your first can, I'd add a .22 can to the order too if you can or ASAP... TBAC makes a good one, so does Sico. I like the Liberty Regulator, it's cheap and one of the best, super simple with 3 parts and easy to service, almost no FRP (with 1cc water NO FRP and NO noise). Has all the features you'll want. You'll use the .22 can more than anything else likely and they have the best performance by far. The Regulator and a PPK/S and the only sound wet is the action; dry and it has a bit of a puff. Better than Hollywood quiet.
Centerfire cans are certainly nice but they aren't nearly as quiet or as fun as a .22 can is. Hosts are cheap too. Just my .02. Good luck, you can't go wrong with a TBAC.