Kewl - thanks for all the work. More information can never hurt.
The only measurement which would be useful to have is drop at distance and joules energy on impact. FPS is not the only important measure of the virtue or vice of a particular weight. The higher .28 and .30 product has more weight and therefore more kinetic energy so theoretically, its less likely to suffer changes in trajectory based on wind resistance. Also, it has better bush penetration through light foliage.
I have noticed a run on the .25 product, but I think once people start into the green ops this summer, the .28 product will get more airplay.