Originally Posted by Haboob

However, nine times out of ten, I can't tell if someone is waving/thumbs upping me when driving by - the tint is so dark on their car + my tint... I can't see.

I'll wave most of the time to other Z people, but I'm not obligated to nor do I expect them to acknowledge. Sounds like the OP thinks he's better than the others, expecting reciprocation from other Z drivers.

Some people like to pay attention to the road...