due to heat questions, we did some testing on film.
shows a log, being lowered from the triple rings really fast.
we got fast enough to smoke and glaze the rope on the porta wrap, but the triple rings didn't get hot like the portie.
we had a thermal thermometer on site too.
highest temp on the rings was 104 I think.
had a camera next to the rings and another camera on the porta wrap.
I'll edit and put the two cameras side by side in a split screen if I can figure out how to do that in my editing program. I'm sure it can do it, it can do anything, I just have to learn how.
Really impressive testing.