Andy, do you mean the forks on the iO?
mine came without and I'm running DMR Olly Wilkins Light DJ forks, so far great but I really wanna try them on a trail or fast on the road/track. My 20mm trailblades were tank like but never twisted at all!
So we'll see. The originals from genesis maybe were not posh. Salsa and Singular are they good, do they track well but offer some vibration and bump damping?
The Day One slim tapered straight blade forks flex a bit but work well.
Yes, the iO forks are what I meant - I used them for a little while on a Kona frame but found them far too harsh and unforgiving (and I was raised on rigid forks...). By comparison Salsa Cromotos and and the Singular forks that I have on my Hummingbird are in a different league, as no doubt, would something like Vicious Cycles forks (they'd be in a different league price-wise too though).
So my choice for 26" wheels) would be Salsa unless money was no object. The Singular forks are all designed for 29" wheels, with offset greater than would be normal for a 26" wheel - 55mm rather than something like 38mm.