Did it on my Inbred, but your putting off the inevitable...
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Worked great. 440mm fork always felt too low & twitchy. 470mm lifted the front nicely. Didnt notice any difference climbing etc, but was more stable going down steeper stuff. Tried it with 29" wheel but didnt like it.
Swapped it for a 29er Inbred eventually. (All my 26" bikes then got sold off).
Can highly recomend the Singular Swift fork. Running one on my Inbred at the moment. I'd say its on par with the On-One carbon for comfort. The Exotic carbon 29er fork is nice also, bit more flex than the On-One & better finished. The Swift fork flexes more than youd think.
(Saddle wasnt ran that height, just stuck in for pic).

IMAG0257 by pten2106, on Flickr