I have Ktech valving in both my Ducatis forks; M900 and 916 though neither has it's original forks fitted.
My Monster actually has 916 Showa forks with Brembo radial brake mounts, I got Ktech to fit the mounts along with Ti-Nitride sliders, their valving and sprung to suit my weight so, a few mods at the same time but they were much improved. Much of that is likely due to reducing the spring weights though as a 916 is a heavier bike and are massively over-sprung anyway, IIRC I came down from 10n to 9n spring weight.
Similarly my 916 has 1198 Ohlins forks which I had Ktech replace the springs (from 10.5n to 9.5n) and fit their valving. These are excellent forks, feeling both really supple and planted at the same time. They do in fact feel better than those on the Monster but I guess the difference is that the Ohlins were a better product to start with plus, they have larger valving than the Showa due to being bigger internally - 25mm vs 20mm valving IIRC.
I do all my own bike servicing & repairs with the exception of suspension that I take to Ktech as it's, IMO not worth messing with forks. You need special tools and knowledge for a job you only do every few years and it saves me making a mess of it plus, it's not too expensive - the Ohlins on my 916 developed a seal leak over last winter. I took them to Ktech who turned them round in a day for around £200, I reckon the tools to dismantle (safely) would likely have cost that much for a job I might do every 10 years.
In summary, I would highly recommend Ktech valving and Ktech themselves for all suspension servicing, it also helps that they are not far from me so I can take/collect in person.
