Hello,
I have never played WMA but can see that some rules have been improved. I have seen quite some posts here that warn against using WMA for WMF games, so I'm curious on how you solved this.
Did you convert all the fantasy armies to WMA then or do you play with the historical armies then? And what about monsters and fliers?
Concerning the rule changes, are there specific rules in WMA that unbalance a WMF game? The max 2 rounds of combat could be one. But the shooting changes and supported infantry charges don't seem that unbalancing at firsti sight.
Well as i mainly play Historical or homebrew stuff these days its not so much of a problem for me, but yes i did convert a few lists, but as previously mentioned it is not possible to convert some units as accurately as i would like as they are costed with an inexplicable "Fantasy Factor" so i did the best i could, i will type up an post the Empire list conversion i have lying around so you can see the differences.
I havent played enough games of Fantasy using Ancients to be able to fully comment on potential problems, but i cant immediately see any real game breakers, though you would (obviously) have to use the flyers and magic rules from Fantasy.
For me it was the minor tweaks to the system(shock & medium cav for eg) and the reduction of combat to a max of 2 rounds, the addition of true skirmishers, and the clarification of points costs that swung me in favour of Ancients.