I have run sid ultimate, fox 34 sc grip, fox 34 grip 130mm and fox 34 with lift damper 130mm. I would rate them in this order, 1 mattoc pro, 2. fox 34 with lift, 3. fox 34 sc grip, 4. sid ultimate. I actually enjoyed my time with the fox 34 sc grip but more on xc type trails. My ranger is my only bike at the moment and I use it for everything, black to green trails. I ride it as hard and fast as others who are on 130-150mm bikes. The mattoc is noticeably stiffer than my fox 34 and the dampening has a wide range. The wide range of dampening let's me set fork up for flow trails, jump lines and as much chunk as 130mm will handle. The hydraulic bottom out is also a huge plus over the other forks. Just like the rangers rear suspension, I can't really feel bottom out. I am still working on some mattoc setup as the airspring in my case seems quite finicky. I'm having to run my IRT pressure ratios a bit closer than recommended range, otherwise any travel beyond midstroke feels harsh. Not saying this is a problem, just something I noticed after using other manitou forks with the IRT airspring. Just for reference, I weigh 200lb, running mattoc at 130mm, airspring at 90-105 upper 75-80 lower chamber. Low-speed comp normally 3-4 from open, high speed comp 1 from open. Rebound on the more open end.