I recently picked up a large quantity of amg parabolic feathers .I noticed the quills were very stiff,and the feathers had took a slight c shape.I use fletching tape and glue the ends,never had any problems.made up a batch of arrows with these new feathers and the tape doesn't seem strong enough to straighten the feathers up and hold. Anybody else had this trouble?

Geez, I've never had a problem with AMG. I like them. (nut)  

Trueflight for me.

Where these feathers NEW or some old stock. I bought a large quanity of old feathers and the packaging suggested that some of them were over 30 years old.

What dragonheart said X2.

I have never seen that, and all I have shot last few years are AMG. My feathers I have right now lay real flat. I have had may share of feathers pulling tape off, but more than one feather mfr. with that problem.  Not the AMG feather's fault. Just bad tape I guess.  Even then it was more a pulling of the helical out at the ends than lifting in the middle.

Never seen that in any AMG feathers and I probably sold thousands to customers and never had one complaint. AMG is all I use...Trueflight got pricey but they do have good quality also.

I use AMG's and haven't had any problems.  I use Duco over Krylon or Minwax wipe on poly for Douglas fir shafts.  I have also used Loc-tite super glue gel over wraps on carbon shafts with great results in the past.