I just had the wax valve and comfort ride valves installed last week at Source Engineering. The max I see coming home on I-5 was 194degs down to 170degs with the trans temp at a steady 170deg all from my Silverleaf.
I have new Koni shocks but the comfort ride valves also made a difference, both well worth it.
If you have the wax valve installed, get an extra gallon or 2 of what ever coolant you use. I had 2 gallons of Cat ELC coolant and they use one.
2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One