FE/FC FE501 shock preload/sag question

I replaced my stock spring with a 6.2 N spring. It had a 5.7 stock. I set the preload to 10mm but only had 90mm of sag. I backed off the preload a bit(2-3mm?) and got the sag set. Is this OK to have less than 10mm preload? I don't know squat about suspension setup so any help would be good. I did add some rebound to slow down the spring since I felt a bit of seesaw with the initial 10mm and some increased rebound. Now that the sag is close and the shock rebound is faster it doesn't see saw too much but I would need to really get out and ride it hard to find out. Just wondering if the stock fork springs need to increase too. TIA

I did some more measuring. I set the new spring to 9 3/4" which was 13mm of preload. That was too much as stated above so I backed it off until I achieved my sag of 105mm. I measured the total spring preload and it is now at 9 15/16"(252mm). My math tells me that's just over 8mm of preload. I hope it's good there. From searching the web it seems one shouldn't go over 10mm if possible and best between 5mm and 10mm and I'm in that range. I thought it was supposed to be at least 10mm, doooh! The spring length unloaded is 10 1/4"(260mm). So with the stock spring I actually had about 13mm of preload to get the sag close and with the new spring I'm at about 8mm. Any input is appreciated. I'm trying to learn as I go. This reads pretty funny since as I type I'm answering my own questions. LOL Hawaiian coffee rules!

What is the static sag? That will help understand if the rate is right.

Static is just the weight of the bike right?

If so it's 1 1/8" or 28mm. That's with the suspension cold. I didn't check that when it was hot earlier. The numbers I mentioned earlier were after riding the bike offroad to heat up the suspension. The static will probably increase when it warms up but I'm not sure.

Edit:
I warmed it up and re measured. It is actually at 1 3/8" (35mm) soo I think I'm A OK here. Thanks for nudging me through. Oh and I actually read the owners manual too, that's a new first for me! It walks you through step by step.

try running around 112mm race sag and see what your static is then. preload will also be better at 112mm