Are these carbon arrows good/a deal?

[Blueracer]

http://www.lancasterarchery.com/shop/product_info.php?cPath=38_79_65_85&products_id=253


They seem reasonably priced, they're .003 straightness and weight sorted +-2 grains. Made to order at $60.00/dozen.

Has anyone shot or know much about the build of them?
Or how they compare to others with similar specs
Is it really a good deal?
Any thoughts ?

[Oct.1]

I’ve been shooting the 4000 cut at 29 inches for the past two seasons now. I do not shoot daily nor do I shoot a thousand times a season. I am the average hunter and shoot for preparation. So far I have only had one start to split at the arrow nock. This may have been a flaw when they were cut. I only have 11 of them left but not a problem with the rest of them. I also bought them in the camo pattern. I use most of them for practice but have four that have been shot with broad heads to test for performance. These are set-aside as my hunting arrows. One of the hunting arrows has been reflected do to blood stained fleches.