I got them and threw them, and I'm quite happy about my purchase.
170g Star Teebird.
169g Flat-looking champion Firebird. (I chose that over a more domey looking 175 g Star Firebird, but we will see how that goes).
The Teebird I threw on second shots a bunch this morning and it seems like the easiest Teebird to throw I've bought. Still had better throws with the Volt, but got the same distance easily, and I'll give it a chance to wear in to straighten up a bit - it is a tad too stable for the straight/tunnel shots I want to use it for. But ya, it was only like 20 feet short of my distance drives most of the time - which makes me think I should just dump my distance drivers again for a while
Firebird I didn't use as much, but the thing just immediately wants to get the left edge down to the ground. I used it on a hole I need a sharp hyzer line on, hole 2 at Dela, and had a nice throw that did what I expected - I'll really test it when I go to windy courses.
I'm not opposed to using Discs that work great, even if they are made by the top brand in Disc making. It is a bit frustrating it took me 3+ tries to find a Teebird that seems to act like the amazing disc people hype, but I know all disc manufacturers have these issues and Innova will have more because they have been around the longest and make the most discs. Part of it is just me getting better as a player too.
Thanks for all the good advice!