Need advice - Sling for TM M4a1

[MacDaddy]

I'm looking to get a sling for my M4A1. My friends at AirsoftArms have the following available:

http://www.airsoftarms.com/viewproductdetail.php?ProdID=2098

http://www.airsoftarms.com/viewproductdetail.php?ProdID=1681

Any opinions on these two slings good/bad/otherwise? The $13 price difference is not a big deal to me. I'm just looking for the best in comfort, versatility, and ease of use.

[p90tr]

they kindof look the same but i would get the blackhawk one

[Nitrous]

I myself own the Eagle Industries one, and I could not be happier with it's performance. It is very comfortable, durable, and doesn't "dig in" to my shoulder at all.