Thanks, I've heard of those, and may bum a few from a friend to try. I buy CS by the pound and am looking for a good starting range for CS by bottle. I thought I'd try a high and low bottle manually before priming the entire bucket in bulk.
On a different tangent, I had great yield on my last transfer to secondary and had excess beer that I caught and funneled into two bottles for an early taste test. I grossly under-primed them cuz I was guessing, but if that happens again, I was going to try to use those early "scrap" bottles to test two different carbonation levels while the rest of the beer sits in secondary. I'm just fearful of over-doing a wheat or Belgian and blowing one up.