When they say Camso, they are referring to the 2019 Yeti track with 10.5 " rail spacing
Not sure what you mean by 10.5 inch rail spacing, its either 8 or 5.5. did you mean the 10.5" SS track because no they are referring to the 12.5" track on the 129 Camso DTS kit, these guys are my buddies, we've switched back and forth on bikes and kits numerous times and the 129 Camso track shines almost every time. Sorry TS guys but the Camso track out performs the 2.5" TS track in every case. For all intents and purposes the new Camso style Yeti track is the same track as the DTS gets its just punched and clipped differently, they also modify the corner of the paddle slightly to clear the carbon fibre tunnel on the Yeti. Camso changed the durometer on the DTS track in 2018 and again slightly in 2020. So short answer for deep light snow its the Camso or new Camso/Yeti track over the CMX. For harder snow and side hilling the CMX works well but it is heavy and wont climb with a Camso/Yeti track equipped bike, the CMX drags the bike down too much. Cant comment on the TS 3.0 inch as I haven't tried it yet but I'd like to. It kind of depends on what type of snow conditions you have where you ride.