I use STP oil filters, which is the same as the AC Delco. After seeing the separation of the felt ends, I might want to rethink that. Although, once it's all sandwiched inside the can, I don't know if that really presents a problem.
The oil "color" I was referring to isn't an only thing to go by (which is apparently how it was wrongly taken), but can assist in giving a second opinion.

 

here are a few of my oil reports

the samples from 3/20/13 and earlier where when my fuel pump was slowly failing, that pump lasted a good 6-7 years. I got a new fuel pump close to the end of the drain interval for 3/20/13. you can see the big improvement in wear numbers after the new pump

 

So according to that filter study, the Fram Xtended Guard is the shizz, with the Mobil 1 coming in second.

 

Yea but the unsung hero is the Purolator Classic at 6 of 31 in the filter paper test and costs just ~$3.27 at WalMart. That's what I put in my RS this oil change.
http://www.gmtruckcentral.com/articl...omparison.html

The ones you mention are two to three times the cost.

I did however find a deal on the V6 3800 Fram Extra Guard for $3.77 or $3.20 if you subscribe to regular shipments as an Add-On which means you have to add it to an order of $25 (the LS1 version is almost 3X the cost, however):

 

Overall score doesn't put the Purolator at the top, but it's still not a bad one. I change my Camaro oil once a year, and 1~2 times a year on my d.d. An extra few bucks a year isn't going to break me.

 

Did you all see the air filter results on that same site?
http://www.gmtruckcentral.com/articl...ter-study.html

Kind of interesting, especially for the oiled air filters, it makes me second guess that choice...