Here is what I have learned from running TPM on my 2 bikes. (TPM - Tire Pressure Monitor) Meltzer's and Michelin's.
06 CVO Ultra, Metzler 880 tires. I ran them at Meltzer's recommendation, max pressure cold. So 40F & 40R. On the road the front heats up and the pressure climbs to about 44lbs consistently and the front wears very nice without any issues.
The rear however will climb all the way to 54lbs. I have had multiple Metzler rear tires fail with chunks coming off the tire. I have been told I was running the tires low on pressure, thus the TPM installed so I could see. (last failure picture attached)
Metzler says it can't get to 54lbs, max will be a 10% gain in pressure max with temperature (4lbs). So much for what they know, they just will not own up to the fact their tires come apart and it is caused by too much pressure, not to little pressure.
I just put new tires on the 06, this time I put on Michelins. Very interesting, I started off again at 40 F/R, the front goes up to about 42 and the rear has never gone over 46, significant difference in how heat affects the tires. On top of this the AZ temps have gone up and the Michelins still are staying in that pressure range. I have backed the cold pressure down to 38R so that I run at about 44 in the rear now hot. I only have about 700 miles on the Michelins so time will tell how they do.
09 Ultra, I also have Metzler 880's on it. Now Metzler again says run max pressure for good tire wear. Ok, these tires say 50lbs for the rear. So I started off at 50bs, well the tire goes to 66lbs hot and it's like riding on a rock. Again Metzler says it can't gain that much pressure, oh well.... So I have worked towards the goal of 52lb, hot riding pressure in the rear.
To get there I run 40F and 42 to 44R cold (depending on time of year and AZ temps) and that pretty much gets me 44F and 53R hot. I have about 8k miles on these tires at this point and they are wearing very nicely.
I don't have any data on the Dunlop's, I was not running a TPM when I had them. When I ran the original Dunlop's on the 09 I ran 38F/40R and other than the typical Dunlop cupping I got 12k out of the rear tire and only changed it because I wanted a new tire for a trip, it sill was not at the wear bars.
What this tells me is that the manufacturer knows where the tire goes hot and puts the max pressure on the side wall that will deliver a safe range for wear and safety when hot. Although I really question what is going on with Metzler. The rep I spoke with basically told me he didn't care what the TPM said, the tire couldn't do that. And they would not do anything with the tire because I had gotten close to the max usable life from it, although it came apart and it was not at the wear bars.
By the way, I have a separate TPM on each bike so it isn't like the TPM is wacked out and they both tell the same story with the Metzlers.
Anyway, hope this my help some