Tire pressure advice for 20" rims

[Baron Blubba]

Here's a set up that isn't accounted for on any tire pressure calculator I've found.

20" disc brake wheels with 23mm inner rim width.
20" Maxxis Torch tires, 20 x 2.2"
Tubed, using Tubolito TPU tubes.
I believe Maxxis recommends 35 - 110 psi for these.

I am 140 lbs, going for a big ol' gravel ride tomorrow. 35 will yield a pretty rough ride, I'm thinking of going down to something like 25-30 psi. Any reason not to? Would the TPU tubes create a reason not to?

For reference, I'll run my 700x40 Schwalbe G-One RS tires on Enve G23 (23irw) wheels at 30ish psi when doing gravel-centric rides on my Mog.

Would love to hear everyone's thoughts.

(PS: These Black Snow wheels feel really nice, but man I wish they were tubeless.)