It was very finicky as far as the setup went. Once I got it dialed it felt great but I still couldn't justify it. It seems like if you are the kind of person that really likes to play with knobs and get your setup completely dialed for different courses it is the shock for you. I also only got to ride it for about 4 days on a local track that is real jumpy and not the best for dialing in suspension setup. Looking back I should have done back to back runs switching the shocks, that probably would have made the CCDB really shine but like I said in my earlier post I am a set and forget kind of rider and once I got to the hill the last thing I want to do is break out the tool kit and go crazy changing shocks and du bushings in the parking lot.
One thing that really stands out about it is it didn't seem to wallow in the travel as much as the DHX, it ramped up nicely at the end of the stroke but still picked up small bumps very well and tracked amazingly. In the end I just ended up putting a ti spring on the DHX to save a little weight, there are some things I am not happy with about the DHX but I certainly don't feel the shock is holding me back any. If I were to keep the V10 I would just send the DHX to PUSH for a custom tune.
The frame I have on order is specced with the RC4 which I didn't get a chance to spend time on but honestly having ridden one on a few different frames I cant see there being much difference between the two (DHX and RC4).
Again if you spend the time to set it up and know how to adjust it properly it is the shock for you, if like me you set it up once and leave it at that I'm not sure how much of a difference it really makes. I'm probably not the best person to ask it was quite a difference but I am not versed in the adjectives of suspension description well enough to describe how and why. PM me if you have some more questions, I'll try to answer them. But basically I don't think 4 days on the track I rode it on was really enough to give it a fair review.
One thing that really stands out about it is it didn't seem to wallow in the travel as much as the DHX, it ramped up nicely at the end of the stroke but still picked up small bumps very well and tracked amazingly. In the end I just ended up putting a ti spring on the DHX to save a little weight, there are some things I am not happy with about the DHX but I certainly don't feel the shock is holding me back any. If I were to keep the V10 I would just send the DHX to PUSH for a custom tune.
The frame I have on order is specced with the RC4 which I didn't get a chance to spend time on but honestly having ridden one on a few different frames I cant see there being much difference between the two (DHX and RC4).
Again if you spend the time to set it up and know how to adjust it properly it is the shock for you, if like me you set it up once and leave it at that I'm not sure how much of a difference it really makes. I'm probably not the best person to ask it was quite a difference but I am not versed in the adjectives of suspension description well enough to describe how and why. PM me if you have some more questions, I'll try to answer them. But basically I don't think 4 days on the track I rode it on was really enough to give it a fair review.
The smaller end of the tool actually goes around the LS adjusters. It is not meant to be used like a screw driver. 
On the other hand, it is very easy to make adjustments of 1/20th a turn with the adjustment tool. People always complain about turning knobs a billion times without effect, and then go right into complaining that the DB is too sensitive when they blindingly go turning knobs all over the place. 
eek
is slightly too large to fit over the screws of LSC adjustments! Pretty poor mistake on such a high $ item IMHO!