Not at all, can't fault the logic there Dave!
I've only ever had one problem with the cooling system, the top tank split quite dramatically, I'll never know why, but fitted a new OEM as replacement.
Obviously, with a 50mm split, it dumped all the coolant almost immediately, and the gauge went to red. So, in a cloud of steam, I managed to coast from fuel station to station, refilling every 10km or so. Kept the gauge just the high side of normal, but out of the red.
Since the replacement, it's never missed a beat, but I appreciate that a slow drip leak would probably go unnoticed, until it's too late.
I can't help, but I'm watching this one, Dave.