Pressures?

Hi guys.

So I am 6’4” tall and 15st (200lbs-210lbs) and I recently bought this XL 2021 Trek Fuel EX 9.7 to enjoy riding trails again.

This is my first time with a carbon, full suspension trail bike, as my last bike was a 2020 Trek Matlin 7 hard tail with coil forks.

So, moving on to this I thought logically that the tyre pressures would be around the same as my Marlin (38-40psi) and that the forks and shock would tell me the correct PSI for my weight…

Well, the forks tell me that I need about 89psi and the shock just says maximum pressure 350psi .So I looked online and found that people base their PSI on “sag” when the suspension is in its loosest position, aiming for around 25%. Annoyingly, that doesn’t really give me a starting point…

So I started at about 170psi and have been working up and up… currently at 225psi before my shock pump blew in half while releasing it. This made me worried that I am putting too much pressure in, but the sag is still too much! Do I just keep adding pressure?

So that’s it really. I just want to tap into your knowledge because everything I read says to measure bike tyre pressure based on feel and to pressurise shocks based on sag… but it would be nice to have a rough ballpark number of what’s the most common figures for someone of my weight.

I am going to be riding smooth trails with my friends, through woodlands and along canal paths. I’m not going to be doing 40ft jumps or anything…

Thanks all in advance!