pingc383, I've just done my last cycle with E2 priming indeed, but that was my own initiative based on my own researches.
I'm with Primary Ivf Sydney (low cost clinic) and my FS doesn't believe in E2 priming and know nothing about it.
I actually designed my own protocol and pushed like crazy until she accepts to prescribe it. (Progynova)
Even though we had a terrible fert rate this time (not due to E2 priming) I had the best eggs recruitment so far thanks to it (I'm a poor responder).
I'll def do it again next cycle.
One thing I learned with Ivf: it's YOUR cycle, own it!