Stealth and IOs and powers and stuff
According to ParagonWiki's page about Stealth:
Stacking Stealth
All stealth powers stack with one exception: Toggle powers whose primary purpose is stealth.
So, for example, if a character has Stealth from the Concealment Power Pool toggled on, and then toggle on Shadow Fall, then Concealment's Stealth will automatically toggle off. This is because both powers have a main focus of granting stealth radius.
This does not include powers which have a bonus stealth component, such as Super Speed or a a Stealth IO. So, for example, if a character has Concealment's Stealth toggled on (35 feet of Stealth in PvE) and then turns on Super Speed (35 feet) and turns on Sprint with a Stealth IO slotted into it (30 feet), then all three will remain on, for 100 feet of total stealth radius.
Unless I'm reading it wrong, that says to me that using Freebird: +Stealth and Shadowfall will combine for 65 points of Stealth.

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Biggest Troll on the forums? I'll give you a hint:

I have a Freebird +Stealth and shadowfall on a /dark corrupter, and it does in fact make you invisible. It also works with the stealth power in storm (who's name escapes me at the moment).
Steamy mist? Hi camper!
I have a Stealth IOs in Sprint on most of my characters and it combines readily with every power with a stealth aspect for effective invisibility. These include:
Shadow Fall
Steamy Mist
Cloaking Device
Concealment: Stealth
Super Speed
Shadow Cloak (warshade)
Teams are the number one killer of soloists.
Oh my goodness, I so did not expect it to work like that. I am so happy, I may giggle uncontrollably now for a few minutes. Don't mind me.
I know that The Stealth IO and Cloaking device from devices stack with SS
On Justice
Global @Desi Nova Twitter: @desi_nova Steam: Desi_nova. I don't do Xbox or PS3
Oh my goodness, I so did not expect it to work like that. I am so happy, I may giggle uncontrollably now for a few minutes. Don't mind me.
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It's a joyus thing. Here's the results of my test if you're interested:
http://www.jordans-town.com/sneaking?nav=gameplay
So, I imagine this has been answered somewhere else, but I can't seem to find it. Shadow Fall says that it doesn't combo with other stealth powers, but what about the stealth IOs? They aren't considered powers, but they are stealth effects. Would having a Stealth IO in my fly make me invisible with Shadow Fall?