whiteboyslo
FNG
The sender is installed at the front of the DS head, in place of the factory Over-Temp.
Mine's in the same place. I see 205°±5°F running around unloaded, sometimes into the 210s if running the AC and/or running up a long hill. Haven't worked mine as hard as yours, but with my heaviest load (4 sportbikes, a small trailer, and a bunch of gear), I saw as high as 230°F once while climbing a long hill. But typically the fan clutch in mine kicks in somewhere in the mid- to upper-220s. It's loud enough to notice and drops the temps QUICK. Actual engagement temps can vary greatly, especially if the AC is running. I still have the OE clutch.
What I have been told (by 'icanfixall' IIRC) is that the port we're using for the coolant temps is a hotter section of the engine due to reduced coolant flow in that particular area (or something to that effect). Actual temps are probably 5-7° lower. I keep meaning to prove that out (mainly to put my mind at ease) by swapping the sensor into the port for the OE gauge for a bit, but the 'honey-do' list and work has been getting in the way.
Mike