Superior Invis and Grant Invis Def stack??

Yes, the defense can stack . . . but the defense in SI gets suppressed to half whenever you do most actions, like attack, click a glowie or get attacked. So, of the total 4.5% Defense, you only keep 2.25% after suppression. If you are only going for the Defense, then Combat Jumping provides the same amount of Defense (2.25%) after suppression for a LOT less endurance. Maneuvers gives 2.625%, but that minimal extra amount costs a lot more endurance (but you can share it across the team).

GI keeps its Defense, but it is only 1.875%. Again, if you are going for Defense and not Invis, then Combat Jumping is better, and you get immobilization protection, too.

Both SI and GI go past the Stealth cap, so stacking them provides almost no benefit -- you might be able to get a little bit closer to a foe with +Perception, but that is probably not worth a power pick.

Yeah in the build I was planning I'm looking for GI to be a place holder for an LOTG. I think I've got CJ too I need to go back and check.

Thank you sir! most appreciated!

I was able to get a Perma PA build without having to take GI as a mule power. The only purples I have is the fairly cheap Confuse set. Take a look at my Perma-PA build near the end of my Ill/Rad guide, and it might give you some ideas.

I hate having to waste a power choice just as an IO mule. I really didn't want to take Combat Jumping on my build, but at least it provides good maneuverability and Immob protection -- which is better than an invis power you don't need. Did you take Hover? That might provide at lease some benefit over GI.

I did not take hover.. That is a very true statement on hover vs Gi.. I'll definitely take a lok at your guide! I didn't know it was out there..

You said when SI supresses it goes to half it's value. Is that true for all toggle invisibilities? This question is sorta unrelated since I'm thinking of a energy Armor brute's Energy cloak and how it suppresses and figure you'd know.

To find my Ill/Rad guide, just click on the link in my sig. Even if you do not have Radiation as your secondary, there is a lot in there that might interest you.

No, most other stealth powers do not supress . . . but they are Stealth, and not full invisibility. I think the idea behind the supression is that once the foe knows you are there, the foe is more likely to hit you. But regular Stealth powers only work from range, so suppression isn't needed.

Sorry I think I may have said it wrong.. Most stealth powers you get a portion of the defense cut when you attack or whatever.
I was just looking to see if that portion is always half.

Also.. Printed out your guide to read at lunch and play around with!