Haven't read the whole thread. Take this for what it's worth. Heard on PGA radio that MySpyGolf did a test with golfers and the Kirkland was ~ 9 yards longer than the Pro V1. On Dennis and Carl Paulson's show (PGA Radio) Dennis Paulson had heard that the Kirkland was a Taylormade patent that was bought by Costco. He mentioned the Nassau factory also. Costco as is known operates on a very low margin. So for example where many products may have a 30% to 40% margin elsewhere, they may operate on a 3% or 4% margin.
They said the average 10 capper won't improve by playing an expensive golf ball. So it's a no brainer if you like playing a premium ball and can get a ball with similar characteristics to a premium ball at a significant discount. I'm playing to ~ an 11handicap right now and play a $19.99 a dozen ball (Srixon Soft Feel). I play with a guy in our group who has a similar handicap and plays Pro V1's. I see no benefit that he gets with the premium ball.
Bottom line it sounds like a decent ball for the money. Carl Paulson said he'd like to see some independent robot testing. Like I said, take it for what it's worth......