Temps
Ben, reference the temps. Even with a thermostat, maintaining temps in the deep is a challange. The warm engine coolant moves up into the cold radiators and cold coolant moves down to cool the engine via the unrestricted lower rad hoses. This happens via thermal convection even if there is no coolant moving past the thermostat. Old radiator type residential hot water heating systems functioned without pumps on this principle. So, keeping those rads warm is helpfully. That requires some sort of cover or restriction that limits bathing everything in that powder. In addition to a thermostat and engine blanket, I've used plastic piece that hinged near the bottom of rads that I pulled up over the rads with a small wire and held in place with a hook. I've also used a canvas attached at the top of rads and had a draw string at bottom which allowed lifting the canvas in increments depending on conditions. Both worked to maintain temps much more consistently. A small hassle to adjust while riding but, I believe temp control is paramount for reliability and longevity. Best of luck
Ben, reference the temps. Even with a thermostat, maintaining temps in the deep is a challange. The warm engine coolant moves up into the cold radiators and cold coolant moves down to cool the engine via the unrestricted lower rad hoses. This happens via thermal convection even if there is no coolant moving past the thermostat. Old radiator type residential hot water heating systems functioned without pumps on this principle. So, keeping those rads warm is helpfully. That requires some sort of cover or restriction that limits bathing everything in that powder. In addition to a thermostat and engine blanket, I've used plastic piece that hinged near the bottom of rads that I pulled up over the rads with a small wire and held in place with a hook. I've also used a canvas attached at the top of rads and had a draw string at bottom which allowed lifting the canvas in increments depending on conditions. Both worked to maintain temps much more consistently. A small hassle to adjust while riding but, I believe temp control is paramount for reliability and longevity. Best of luck