I've had KYB's with the green SKF seals in on my 14 all last year and my 15 most of this year, with no push button bleeders, I have never had air build up or leaking but do change oil at about 15 hours or four races.
I had some weeping on one fork at the last enduro a couple weeks ago but cleaned the seal and it stopped, it sent the forks off for a full service and JBI cones, and they where to the point where the needed bushings also but they had a year and a half on them .
I suspect allot of peoples harsh forks and air build up center around the push button bleeders, I know mine did, those ST bleeders look like the trick.