Unfortunately it's not that easy. I had the same boy three times over the course of 12 months, the experience went from awesome to poor to ok.
Furthermore, you rave about multiple boys from Super A and Nature Boys, but when I go there, usually I wouldn't take any of them for free. I think I had that boy Oh in Nature Boys two years ago, and my experience matches yours.
My blog serves a similar purpose for me, but more for saunas and other places than gogo bars. But my number of boys is so low compared to yours, I can keep them all in mind.
Regarding Adam's Apple in Chiang Mai, I have been about once every year since 2010 and always liked what I saw, which I cannot claim about the Bangkok and Pattaya bars.