I can't hear anything at a nitro race. A dozen crazed nitro buggies sceaming all over the track. Anything can get lost in that noise.
I use my eyes to tell if a car is upsidedown. Not my ears.
Allthough I like the fact that nitro drowns out the electric cars. The only noise they make is that horrible grinding gear noise and some whine. Wished they sounded cooler like 1/10th scale.
Sounds like we need to find better spots for the marshals to stand, and better drivers.
Lets not ruin one of the best things to happen to RC because its too good. Slow and safe is boring.