I kept my break times to 5 - 7 minutes each, with the exception of a 20 minute lunch break at Centralia College and a 10 - 12 minute shade/water break about 30 miles later.

Clifton, that must have been just after the Napavine Hill?

cyclenewbie - The death ride probably compares more to our RAMROD (Ride Around Mt. Rainier in One Day). If you can do that, you shouldn't have problems with STP, given you're in the same condition as when you rode the death ride. As other have mentioned, STP is flat by comparison. The first hundred is really flat, there are continual rollers on the second half.

The heat was really the biggest factor for me. I finished in about 11 hours rolling time, but a few more hours total time (I stopped and chatted a bit.)