I had a similar dilemma last year and ended up going for the Durin (alright, I admit, at the end of the day it came down to the Durin looking cooler…)
Have to say it's the best fork I've ridden. I love it, stiff, light, copes with everything and the double arch looks the business.
Though I think the SID is probably equally as good. It just doesn't look as good.
No trouble setting it up either.