I have been doing KTMs since 98. I have been on the boards since 03 or so. I learned that not just anyone can do a KTM right. The rear linkless takes some KTM experience to get them right in terms of working right. Seals and re-valve anyone can do, but can they do the re-valve right is the key. I also learned that you need to use a KTM specialist in order to get it right as said above. So generally most of the big names are out and dont do well. The ones Ive heard over n over to get it right are EE, Dicks, Slavens, MXTech, and Trail tricks.
I have only used Trail tricks. I have had him re-valve my 200 rear, shorten and re-valve my wifes 250 and now I have sent my 06 525 stuff to him for a 1" shorten and rear re-valve. I previously bought base valves and cartridges and did the front parts swap myself. Should get it back in a week or two. Will let you all know how it works after that. I have been very happy with the wifes bike after it was shortened 1.5" so I am looking forward to getting mine a little lower for my old, fat, short legged, getting weaker tippin over ass.
I have only used Trail tricks. I have had him re-valve my 200 rear, shorten and re-valve my wifes 250 and now I have sent my 06 525 stuff to him for a 1" shorten and rear re-valve. I previously bought base valves and cartridges and did the front parts swap myself. Should get it back in a week or two. Will let you all know how it works after that. I have been very happy with the wifes bike after it was shortened 1.5" so I am looking forward to getting mine a little lower for my old, fat, short legged, getting weaker tippin over ass.
Awesome, the thing I'd be concerned about is the handling, I'd figure that there would be a trade off. 
) however thankfully I've gotten used to it. Plus like CDA once said "Touching the ground is overrated". 
