Not sure if this has ever been mentioned but maybe ENY is set to high on the planes latter. A lower cap might be needed in other words. I've seen quite a few 29's since my arrival back in 7/07 that seem to climb partly because of tower loitering. <---could be fixed as well
ENY has been adjusted for different planes in the past by HTC, maybe it could be adjusted to better fit the rules and let us fly a few more of the planes that fall between 15 and 20 when eny gets to that range.
There are many planes in the spectrum that would not hurt to leave in if the sides were to get to unbalanced. Seems something could be worked out to tweak some numbers to fit the currant system better. A few of the planes in 15 might really be 20's like the f6 or f4u1. The 109k might be a 15. Anyway, just a thought to help lower the complaining on the subject.
What does ENY stand for anyway. Hard to do a search to find that out.