So, I've been exploring air forms and have had all but the crag soarer as a second tier. Some questions to those who know...

None of these questions apply to quest forms...just normal ones.

1) First, do any forms of any focus (not quest forms) require IMMxp or anything to get?

2) It seems like some forms are more common that others in my limited sample size of shifters. Do you have the same odds of getting the forms or are some supposed to be more rare?

3) I've had all but one tier 2 air forms and noticed that the Skyflash doesn't have fire resist, though I thought it used to. Is that a recent change?

Just looking at the things that seem to add real value to the forms (not things like furor or prey/predator) it seems like the Skyflash is a significantly less useful form than the others. Am I missing something?

Burrowing owl: detect hidden, slight dam redux, excellent dodging, burrows
Shirka: High dex, excellent dodge, camo, ambush, greater evasion
Crag Soarer: *Major Regen*, Evasion, avg dodge w/ 21 dex
Boulder hawk: Knockout dive, dam redux, avg dodge, bash redux
Osprey: Avg dodge (but with 23 dex), drown resistance, dive, high hit/dam
Skyflash: Avg dodge