I just got back from a 600 mile trip, of which 120 miles were off-road.
The off-road included graded fire roads, jeep trails and single track.
All of this was in the California desert, so the graded fire roads were heavily gravelled and had a lot of washboard (stutter bumps, whatever you call them) and sand wash. The jeep trails were typical with large bumps, wash-outs, water bars, ruts, and baby heads. The single track stuff was actually pretty smooth, but undulating with a lot of whoop do doos. A few miles were across rocky, road-less/track-less areas where the track was almost indiscernible and often simply disappeared.
There is but a faint trail across the desert to this spot. Pretty much riding over baby heads. This spot is one of a series of huge erosion piles.
The set-up was a Ricor rear shock with 350 pound spring on it and Intiminators and Progressive springs in the front end with Amsoil #5 shock fluid. I had 7/8" of pre-load on the shock spring which gave me 3 1/2" of sag all-up and 3" with just me and the lighter riding load.
What I was comparing to was my old KLR with a custom Cogent shock with 400 pound spring and Racetech Gold Valves with Progressive springs in the front, running a 10 weight oil.
All-up on the slab, I was 270 pounds with my full gear on and had 40 pounds in my tail bag and small side bags.
Riding in the back country I had most of the contents of the bag out and so had about 15 pounds on the rack.
My first impression of the Ricor set-up came on the entry road to the area, one I've ridden many times. This is a graded road with heavy washboard and a speed limit of 15 mph. It's not regularly enforced, but you never know when you'll run into a Ranger so it's best to be reasonable.
I immediately noticed that the front suspension and, to a lesser extent, the rear packed up* on the washboard. This was most noticeable in the front end, which dived as if I was braking. The rear didn't seem as bad and after a while I didn't notice it unless I concentrated on what the rear was doing. It was a real pisser on the front, though, and I never did get used to it. I found that the suspension wouldn't really work until I was over 45 and it was pretty good approaching 60. Four times the speed limit isn't acceptable, though, just to have a decent ride.
This packing up in the front, I think, can be attributed to the Progressive springs. The close-wound soft portion doesn't provide enough force for the Intiminators to work. I had the same problem with my Racetech valves and spent considerable time tuning it out. Suffice it to say you probably don't want Progressive springs with your Iniminators unless you're willing to do some tuning.
On the Jeep trails I found the suspension to be very good on big hits, especially at speed. I felt comfortable running at up to 40 over normal jeep trails. Getting into more technical sections with baby heads and rocky drop offs the suspension was well planted and supple enough, though I would have set the Ricor shock up a bit softer on re-bound if I could.
I ran through several ravines with rough, rutted 45 degree entrance and exits with a sharp bottom. Though I was a bit shaky on the first one the performance of the suspension gave me enough confidence to run the others easily. I was by myself, so didn't get overly aggressive and passed up one very long, steep descent that would have been a hoot.
That steep descent was approached by a long, steep ascent and I was impressed at how planted the rear end was, allowing the the tires to hook up well with no hopping or monkey motion. The climbs out of the ravines were also very easy. Ever get stuck on a steep ascent where the rear end won't hook up under power or the rear end just goes all over the place? Didn't happen.
The single track run was typical, just a long trail with whoops, which the suspension handled well. Again, I was alone and didn't try any super-moto stuff but it ran pretty well over the whoops with the front end either light or in the air.
I was planning on doing a bit of tweaking on the rear pre-load (nothing I could do about the front) but the weather forecast turned bad on me and I had to get out or face camping in a desert storm. It rained from 3am to 9am the second night before letting up. On the way home I rode into the oncoming storm and rode through very heavy winds, hail, rain, and near freezing temperatures. I had to hole up in Cabazon at the restaurant with the dinosaurs for about two hours while I watched the snow line come down the hills 500 feet.
It was a fun couple of days.
All in all I would say the Ricor set up is competent and, with the exception of the packing up issue, works as well as my other set-up. I think the packing up issue can be addressed by eliminating the Progressive springs and/or doing a bit of tuning with the shim stack on the Intiminators. Ricor makes claims that their product can sense whether a compressing force is coming from the terrain or the bike. I have noticed that this bike doesn't dive terribly badly under braking, but cannot judge whether or not the inertia valve really works when the bike is at speed and both the bike and the terrain are rapidly bobbing up and down. I can say that as suspension, it works.
*I'm not sure if 'packing up' is a proper technical term, but what I mean is that the suspension would take a hit and not have time to rebound before the next hit. Progressive hits, like encountered on washboard, caused the suspension to collapse. The front end would dive and the rear would squat.