Hmmm...

[Parshooter]

So I saw this at the Costco yesterday and figured why not. I'm 99% sure they are boneless. At least that's what the sign on the counter said and I didn't feel any bones through the packaging. Going to smoke it tomorrow and I'll post the progression. Wish me luck.

 

[BigW.]

Looks like Baby Backs to me. I found this:

 

[sandyut]

I agree, looks like baby backs. Keep us posted.

 

[chopsaw]

Baby back ribs and pork loin backs ribs are the same thing .