One thing to remember with any recommended air pressures is that a shock pumps accuracy varies greatly. I have 3 analog and 2 digital pumps and between them, there is about a 15psi range in readings.the digital pumps are pretty similar with roughly a 3psi difference between them. The analog pumps are the ones that differ significantly.So I've got two rides on mine. I'm coming from a Helm, but in the last 2 years I've also had a SR Suntour Auron PCS RC2, DVO Sapphire 34 D1, MRP Ribbon Air, Fox 34 FIT4, and Cane Creek Helm Air. I may or may not have a suspension ADD problem, although I find forks with a good balance of support, smoothness, and adjustment are hard to find. I also have ulnar neuropathy in my left hand, which means bike setup for me is a careful balance.
I've run it in three configurations as a 220lb rider, riding a lot of natural, steep-ish terrain:
1. Recommended: 73 main, 105 IRT, 3 rebound, full open LSC/HSC (~25% sag)
2. Adjustment A: 78 main, 115 IRT, 3 rebound, full open LSC/HSC (~20% sag)
3. Adjustment B: 78 main, 105 IRT, 3 rebound, full open LSC/HSC (Didn't check sag)
The recommended setting tracked well and was supple, but it tended to dive a little bit in corners and got a little squirrely at speed. I'm coming directly from my Helm, which is a super supportive fork, so part of that is probably just riding something less damped and getting used to it, but I think it was still too soft for my weight or the way I ride. I generally run it a bit on the firmer side, anyway.
I increased the main and IRT pressures and it felt good, but it felt like it was spiking a bit, which I attributed to the transition between the main compressing and the IRT starting to compress. I dropped 10psi out of the IRT and it seemed to smooth out a fair bit, although I think I'll add some LSC to help in corners and with braking, but that felt pretty close for now. I may also drop a few psi out of my main, maybe take it to 75 and closer to 22% sag.
Riding the recommended settings, I hit the HBO a bit and it is a very interesting feeling. I like it a lot, but it's kindof disorienting when you are used to your fork yanking you forward when it hits that end ramp up point. I think I hit it a few times on my first ride using the recommended settings and it was super nice.
Overall, the fork feels great. It tracks better than my Helm did, even when it was spiking a bit. It feels really smooth, the adjustments seem to have a pretty noticeable impact. The only thing I wish was different was the LSR adjuster, I'd prefer more granular adjustments, but that is kindof a nitpick and it feels really good for now. My rides have mostly been on the shorter side, too, so hopefully I'll get some others on bigger terrain. I may back it off slightly, because it does feel a bit on the firm side, but just barely. I may also try the recommended settings, but add 4-5 clicks of LSC.