That might already have a 8mm shaft being for a 500? And those SAB blades have gotten good reviews too.
I set them all to zero. I started with the VFF at .15 on both, and tuned the tail first. The heli flies fine on VFF .15. Then pull the microSD out and look at the Rate to see how it tracks. You have to make some stick movements get enough info to get a good idea of how the rate is tracking. That will be totally dependent on your mechanical rate too, because rate control is rate control, regardless of whether it is mechanical or electronic. It’s whatever it takes to get the right rate so actual tracks desired.
The heli may get way more responsive than you want. That’s where you use the Accel values to slow it down but 110000 is usually pretty close for a 500.
Then do D gain first, P gain next, and I gain same as VFF. Leonard did not recommend doing it the way I did where I set pitch to very slightly less than roll. That was my own invention. He recommended doing one axis at a time. I tried it on pitch and got to ridiculous values without ever getting the shakes. Since I like a little less damping on the pitch I set it a notch lower than roll. Normally that would be a notch higher than roll. But that’s personal preference because I like 'em to lean in smooth and flare smooth, and just don’t like too much damping on the pitch.
Leonard’s tuning method, tuning the D gain first, seems to allow use of D gain. Most people leave it at zero because the current instructions say to over-tune the P by not turning it down far enough from the oscillation point, so adding D gain puts it into instant shake. The heli actually flies better with some D gain.