Magura have service videos on their website now, if you go to the forks for 2010 and clicky on videos.
Frankly they are dead easy to strip and lube. Magura suggest and annual damper service (which they do not provide details about) I'm told they are virtually the same as rockshox in that regard.
One thing to be mindful of is that they are very linear so if you get the pressure too low they will go through the travel.
I'm around 16.5 stone now and run at 96PSI with minimal rebound and find them really good, don't even dive too much on the brakes and bouce back in a very manageable way. They track shitty root gardens very well for example without pinging off everything at speed. It's important to get the pressures right a few psi makes a lot of difference, handy then that you get a no loss pump with them.
At first I thought they were a bit divey but literally 4 psi sorted it and they have held that pressure ever since.
Dont jet wash them as the decals dont like it, I was given a new set FOC by return post I have really been impressed with both the forks and Magura after sales guy in the UK.
Very underrated and much better than the RLC's they replaced.