IslePilot... how did the ole Taco do on Mt Princeton? Once comment I will make about your reading from SGII is that that's pulling temp readings from the factory temp sensor which is in the pan (fluid temps after it's been cooled through the cooler). So that's the fluid temp going into your transmission. So if you're reading 230*F going into your pan (after it's been cooled)... I would be worried how hot it's reaching after an unlocked torque converter flash heating. You know what I mean? I have a temp sensor I installed in the cooler inlet line (after the torque converter and before the cooler). I went with Autometer Elite tranny temp gauge, step-motor type... so I'm pretty confident the temp reading is accurate. I've read that when oils hit certain hi temp levels... they become "denatured", decomposes - fall apart and no longer do their job (even when cooled) it doesn't go back to it natural state/composition. I think the general number is 260*F. With a B&M SuperCooler installed, I hit 220*F on some of these mountain climbs out here in CO. But for me, I'm feel good about that and knowing that's the hottest the fluid ever got. It could only get cooler from that point. I'd have to assume an unlock torque converter could be flash heating the fluid by at least 20-30 degrees. And so if you're reading 230*F (post cooled)... that could mean 260*F after the torque converter. Just my two cents. After talking with B&M, they advised me to simply replace my aux cooler with their unit. They felt like having both was unnecessary. So in my Taco, I only have the B&M... the aux cooler I removed.