The only dose that has been tested by Ergopharm for test boosting was 300 mgs X 2. I've always wondered where the diminishing dosing protocol came from, having never seen Pat Arnold endorse it and knowing that 6-oxo is a weak Suicide inhibitor of Aromatase.
I also would like to see 6-oxo tested for longer than 3 weeks, Letrozole shows a rebound in Estradiol levels in healthy non anabolic using males after 21 days to back above baseline, and 6-oxo may have a similar profile.