I went for it. To explain my situation, I had a 110-140mm spring laying around since I sold my previous RL DPC (which I regretted almost immedietly), and I couldn't find any 140mm models to buy. The maximum travel of my frame is 140mm, and I really don't feel the need for any more on my trails either, hence the want to go for 140mm.
It all seemed to go fine, and it feels fine when riding from the little but I've done, but off the bike I noticed some odd things which I emailed Loco about but thought I might put on here as well (as I'm not a customer, atleast not yet, he shouldn't feel any obligation to priorize my question after all).
"I've recently bought a 120-150mm Sektor RL DPC 2013 and popped a 110-140mm spring assembly in it. The stanchions have markings for 140 and 150 and the fork doesn't appear to be sold in the 140 variety anymore that I could find, so I thought the spring assembly would be the only thing separating them. Was I wrong?
I ask because while the spring in question gave me 30% sag on my 110-140mm Sektor RL DPC 2012 (which I stupidly sold and soon regretted), it now gives me 20% sag (according to 140mm sag markings).
Also, when "resting", assembled to the bike but with no other weight on it, the fork is at 150mm. If I put a little bit of weight on it and carefully let go it will stop at the beginning of the 140 markings however, until I lift the front wheel completely of the ground whereby it goes back to 150. I don't know how relevant that is though.
So, what have I done exactly? Just made a 150mm fork with a slightly firmer spring than if it was the correct one, or can I expect any weird characteristics? Can I do anything else to definitely turn it into a 140mm fork? The last bit is quite important to me since that's the maximum travel of my frame."