Water Wetter is good.
Watch the Robert Shaw thermostat though, 160 is WAY too cool. 180 is pushing it. The stock 197 should be good, mine doesn't really go above the O in NORM.
Also the design of the Robert Shaw is questionable. It can allow TOO MUCH flow. this is a problem for us because we have such a small radiator, the coolant cann actually flow through so fast it doen't have time to dissapate much heat.
Personally I wouldn't fool with the thermostat unless there is a problem, like if it is stuck. These housings are delicate. It seems like every time they are removed they start to leak. It took me four tries to finally get mine to seal after fooling around with the thermostats. ( by the way, there was no noticable difference in temp or performance between the 180 and stock for me.)
Cutting the #14 wire? Thats a new one to me. Don't cut any wires, they are there for a reason. I have heard or people ADDING wiring, to allow them to switch on the cooling fans early if the wish.