I'll tell you a secret about harasser driving leetness: Everything I do comes from a little practice and a metric ton of luck.
Situational. Stealth is good for sneaky stuff, but it's hard to be sneaky on Emerald Primetime fights cause players aren't stupid. You'll get spotted by random vanu snipers in the mountains and stuff. I use mineguard the most, comp armor second. I drive and go to fights like the ones in this video, so you can see I don't do the long range boring stuff that the Gatekeeper generation does. Maybe they use stealth so no one bothers them 4 hexes away while they plink at stuff.