Being the curious PIA type I am, I did some searching to try and see where others dial in their tire pressures. The search included here but also some other sites. Possibly I didn't look in the right spot, but I could not find any real mention of recommendation of
tire brand vs team weight vs tire size vs inflation pressure.
I did find this article on Precision Tandems site. It deals a lot with weight bias.
I grabbed one quote from it that indicates the possibility of inflating the tire above the sidewall rating.
"That said, my favorite tire for teams in this weight range is the 28mm Continental Ultra Gatorskin. We have used the Gatorskin on triplets, quads and quints at 140 psi and find the sidewall wear at the rim junction is far less than that of other tires."
Not saying this is for everyone or something we need.
But I do ask, what method do you use to determine your best pressure? Is there some kind of guideline chart floating around here or on the net? Any ideas on how much heat and pressure increase is seen on a ride of a couple hours.