I inherently dislike high rate of fire setups and mods. No offense to you spazz, but I see people going on about "high rps" and the only parallel I can see is paintballers. If it were up to me (and I know and accept that it isn't) all guns would be limited to the RPM of their real life counterparts. I roll my eyes every time the guy next to me starts reloading because he blew his entire mag in the general direction of the badguys and didn't hit anything, while I still have 3/4 of my ammo left to go. I get that more rounds in the air means higher chance to hit, but personally I like to make up for airsoft's deficiencies with accuracy instead of volume. I find that it makes me able to last a lot longer in a fight.
And there absolutely can be arcing on an AEG. I've seen tons of trigger contacts with signs of arcing on them that had to be cleaned up because they weren't making a good connection anymore. Maybe not on a "tuned" trigger, but 90% of airsofters don't do that and just leave it stock. I've seen a couple of guns straight up catch fire during games from shorts, there's plenty of juice there.