As far as I know we don't do endo differently here on the west coast
Where you do your residency does not effect your licensure. You also don't need a license in most states to become a dental resident, thus taking the WREB out of the picture.
For the last two years, my residents have done ~70-95 RCT's each, with about 40-50 molars. My current resident is planning on applying to Endo in this upcoming cycle
We're the NYU/L AEGD in Visalia,CA with Family HealthCare Network.