I guess I am one of the odd few.  I've been on a 250mg/week dose now for almost 2 years now.  I've never needed an AI and I feel fantastic.  My E2 is high on labs, but I don't have any of the side effects.  Last year I dropped my dose down to 200mg for about 5 weeks to save on $$ towards the end of the year, and it was terrible.  Thus, I am a believer in the T/E ratio as when I raised my dose back up and let levels adjust I was back to feeling great again.  I'm sure my hemocrit number is borderline high, but blood pressure is normal, and I donate every so often. 
My doc has no issues prescribing this dose for many of his patients from a local compounding pharmacy.