Just some more feedback...
I feel the RDX30Ti suppression levels fall about halfway between my Ultra 7/Dominus and my OCL Hydrogen L, and is roughly equal to my Nomad TiXC. This is on a 20" 6.5x47 and 16" 308. Once I removed the steel direct thread adapter and installed a Titanium ECCO HUB-to-TBAC CB adapter, the weight of the RDX30 fell right inline with my Ultra 7 (gen 1) and Dominus, so it is fairly lightweight and comes in at 7 1/4" to the tip of the flash hider endcap.
The built-in brake does help mitigate recoil compared to the others, but I don't think it works quite as well as the TiXC with the Recoil X gen 1 installed. Its recoil character is similar to my R30 but without the ability to fine tune it or to close the ports off completely. I shot a few rounds with the Recoil X on the RDX30 for kicks but did not notice a difference and did not like the added length.
IMHO, the RDX30 is a great do-it-all/workhorse bolt gun can. It is lighter and quieter than my R30, about the same weight but a little quieter than my Ultra 7, and very slightly heavier and longer than my TiXC with roughly equal suppression levels. I have not and do not plan to shoot it on my AR, so I cannot speak to it's backpressure.