no one can

I agree with the tuning potential of hexes... then again 80% of the people I see at the tracks I run at can't run a lap without crashing the car or missing 5 apexes in a row... most AE shocks I've seen aren't filled and/or maintained properly ("what? you mean I have to put oil and change o-rings in this thing on a regular basis? Are you crazy??")... a lot of racers still tighten the shock mounts like if there was no tomorrow, hence binding the whole suspension... so many people can't glue tires on rims right to save their lives... so, yes, tuning track width to the mm to get more or less grip on one end of the car is great, but this certainly wasn't a priority for most. Hexes certainly don't hurt as long as you can afford them as well as changing all your stock of wheels at once, but there are soooooo many things to do before that! My candid take on this is that it's 99% marketing, 1% performance/reliability

Paul