Thanks for the update with the option of higher tt. Would've preferred a couple of degrees higher, but I understand you don't want to be held responsible for gpu failures. My reference 290s have been running non stop for the last 3 years, and have spent at least the last 2 years with a tt of 88. All are still going strong, thanks to lower stress on the fans.
Meaby when i make my fan script more perfect becasue it still have little gap for for temperature that can go up to 5 C than set maximum tt for few seconds.
I will increase this when i make it perfect

I'm impressed/intrigued by the fact that you manage to set variables like clock speed and tt with gpu-pro drivers. I was under the impression this was only possible on older catalyst drivers. No aticonfig for gpu-pro?