. Another+1 for Orange Seal and GP5000s. I use the endurance or the subzero. I'm riding on GP5000s and I also would only buy the S TR variety. I've had two sidewall ruptures with the 25c TL, and I don't want to press my luck.
The 32 mm TL tires on the tandem have been fine. Over 2000 miles and not a problem. Other than the two sidewall ruptures the 25 mm tires have been good. But those are down right scary.
No flats from punctures in at least 6000 miles on the 25 mm tires. Several times I have found dried sealant on my frame or forks but never had to fix a puncture.
Also, I used a tire jack to mount the 25s. The 32s are on Spinergy wheels, the 25s on Rolf and Light Bicycle wheels.
The Spinergy were easy to mount, levers only or by hand. The Rolf were not too bad, levers and now that I have one, the tire jack. The Light Bicycle are doable in 10 minutes with the the tire jack.