Guys: The Sage ruled on this. Very simply: bonus feats gained as the class level benefits of non-epic levels in a class may not be used to acquire epic feats. Thus, bonus feats from fighter class levels 1,2,4,6,8,10,12,14,16,18, and 20, bonus feats from wizard class levels 5,10,15, and 20, and any analogous feats cannot be used for epic feats.
Thus, a Ftr10/Wpn10 who puts epic levels into any class except weaponmaster gains epic feats only from advancing in character level (21, 24, 27, 30, etc.). Advancing beyond 10th level in the weaponmaster class, however, may grant the character bonus epic feats. An epic weaponmaster progression is easy to work out: ki damage 1/day/class level, and increased multiplier 1/day per 2 levels after 10th (6/day at 12th, 7/day at 14th, etc.). I'd probably give the class 1 bonus epic feat per 3 levels after 20th (23rd, 26th, 29th, etc.), with a bonus feat list similar to that for the epic fighter.
