aethereal

Yes, specifically the inner of the two clamps.

Enemy accuracy is irrelevant here. It's applied after the softcap clamp, so you can't reduce an enemy's chance to hit you down below 5% x their accuracy with more defense or to-hit debuff.

Good news, Storm Kick gives +10% not only to all positional defenses, but also to all typed defenses besides psi/toxic.

https://homecoming.wiki/wiki/Procs_Per_Minute

This is correct. Proc chance is also affected by area factor.

I don't know how people would expect PVP with PVE rules on mezzes to be anything approaching like fun. You're either immune to all mezzes (if you're an armored class or you popped a breakfree) or you get held and killed the end. That doesn't sound fun!

FWIW Superspeed gets basically the same amount of stealth as Infiltration. 35 feet rather than 36 feet

I haven't used Disrupt, but I did use Bio's sleep aura along with the sleep in Frozen Aura, and, like... I don't really know what to say. It definitely works. Does it make a huge change in your incoming damage? Proooooobably not? But it's not nothing.

I wonder if there's a thing where their immunity to being teleported also makes them immune to being targeted by attacks that teleport their attacker?

How about arguing that you should use the suggestions forum for suggestions?

I'll never change anyone's mind on click mez, but I swear to you all that it's not some huge problem. You don't need to set it on auto. The duration vs recharge on the clicky mez powers is very generous. It's not like Hasten where you're going to just barely get it to perma, it'll be recharged before the duration is even half expired. So you don't need to watch like a hawk for when it comes off recharge. You've got time. What I do is try to check it right before I dive into a new spawn. If it's off recharge, I click it, then ignore it for the duration of fighting that spawn. If you do end up with a gap in your mez protection and you get mezzed, it's NBD! These powers can be clicked through mezzes which breaks you free. For Shield, you plausibly want to set the power on auto because it drives your DDR. For SR and Ninjutsu it's fine to just click it between spawns.

Just to be sure, your PPM calculation includes the effects of the local recharge that the ATO2 itself brings into the power?

The 10 second lockout is so annoying and unnecessary. If they don't want the hide happening too often, they should adjust down the PPM, but the lockout is gane design malpractice.

Blaster's ranged scalar is 1.125, not 1.25.

You didn't "imply" it was one, you directly stated it, suggesting that, "all the set's AoE are spenders." Of the three AoE powers in the set (Rending Flurry, Shred, and Savage Leap), only Rending Flurry is a spender.