As a many time winner of model railroad model contests, I am as much a stickler for detail as anyone. But some
concessions must be made to keep the car usable. The trick is to find the balance. I tried to make wheel inserts
mandatory in the group where I raced the cars I posted, but there was just too much push-back from the commercial
racers in the group. Some didn't even want drivers mandatory. I even offered the resin cast inserts and drivers free,
since I was casting them. I just couldn't convince them.
Slot missiles vs. slot models!
As a model railroader you might recall a long standing debate between the scale adherents and tinplate fans. As I recall, the argument of the latter was that while admitting that their compromises like odd-looking automatic couplers, way out-of-scale wheel flanges, impossible tight curves etc. affected appearance, they facilitated more realistic operation. (I'm recalling this from debates in Model Railroader ca late 40's - early 50's - my HO layout was taken down to make room for a 4 lane Scalextric track in 1959)
EM