ya im running dueal tuaras fans on high. i ran a power wire from my ignition to my temp switch that turns on at 193-205 and shuts down at 140 into a starter selinod as my activation point then ran the fan like a starter so when it reaches my temp the starter switch enguages and the fan tunrs on. i did 1 fan that way and the secound fan on a toggle just for towing

the problem with your switch shutting off that high, is your fan could kick on at 193 and you only want it to cool 10 degrees, but the fan wont turn itself off until it hits 140 degress. youll never get it to run at the correct temperature. and while driving if you have decent airflow your s wont even come one they stay cool themselves, and if it was hot before and your fans are staying on, thats bad on your electrical system and puts more drain on the fans