I think you need the plates to control the speed but after that just let the guys(girls too) race. Let them run whatever gear, trans, deck height whatever. The desire to be the best has always been what drives racing, they use the BS about making it affordable for single car teams and small operations to compete but now they have created a 190 mph log jam with regulations. Limit the horse power and let the rest be free game to whomever can make it happen and everyone else will catch up, like it was for 45 years or so.
The speed has become the issue, slow the cars down by taking away downforce. The plates just keep the horsepower and acceleration down resulting in a bunch and the inevitable "Big One" at the end. Another way to slow the cars is to make them conform 100% to the template of the production car. I am all for the safety improvements but if Ford/Chevy/Dodge needs to make their car more aero slick to win, then let them design it, not NASCAR. The manufacturers cup is a joke, they are all the same! I have so many other issues.................