If you start considering items that are not stock and not deducting for them indeed the rules change.No one is moving any goal posts. Sorry.
One can have function AND cosmetics. Having the right screw head on a double wire clamp does not take away function, but it does maintain original cosmetics. I don't think the purist have taken over - there are three categories at the Tigers United for the concours. However, more and more folks like to show their car as what it was like when it came off the factory. The beauty of our cars is that everyone is free to do with their car whatever they want. If someone wants to add fuel injection, 16" wheels, seats with headrests, etc., that is cool. If another person wants to have their car as original as possible, that is also cool. I know what I did to my car nearly 51 years ago, and now I wish I hadn't. Some of the parts I took off are now irreplaceable. My only plea to folks is that they keep whatever was original when they replace it with something more modern. However, there is a charm to driving a car from the mid-60s that one does not get from driving a car from the 2020s. We can buy a modern car that has a whole lot more functionality than a Tiger for a whole lot less money that what the Tiger would cost. But we like driving Tigers.Always have been a function over cosmetics guy myself. If it fits and gets the car behaving well, we like it. Consider what we did to these things when they were new. Cams, manifolds, carbs, exhausts, wheels & tires were altered by the 2nd weekend of ownership. When did the purists take over?
Having a hex head wire clamp would have been REALLY helpful when I put the fuel tank crossover pipe back in. I used my mechanic father-in-law's old 2 1/2 foot long screwdriver which I thought was pretty useless, until I needed it to tighten those original slotted round head clamps.Having the right screw head on a double wire clamp does not take away function, but it does maintain original cosmetics.