Apparently melees get their final attack speed boost at 25 BAB. Epics give you 5 BAB... finding 20 from heroics is tough, as BAB rounds down (so any multiclassing with less-than-best melee progressions will suffer the loss). There are ways to get BAB up, like Tensor's, but that's a big ask for a lot of melee builds and difficult to keep up (swapping to a scroll every minute or whatever it is). The alternative is the Divine Crusader mantle, which sets your BAB equal to your level (serving allegedly no purpose beyond 25).
Could we get some progression in Legendaries? Even .25?
Could we get some progression in Legendaries? Even .25?