hi I have done the protocol and bloodwork 6 or 7 times prior to this test. I have been on cruise of 300mg per wk (1 pin per wk ) for 3 months . I was using psl test e 300 mg per wk with no ai had bloodwork done , that result came back > 1500, estro 120. switched to a different brand for 4 wks ,using 12.5 aromisin eod, new results came back 963 with estro 58. I have talked with the source , a sponser here he told me product had been tested ( mass spec 98.6 % ) heavy iron said bloodwork is just a crude test . but this is the lowest result I have had , except for a fail of 540. it is a reputeable source here that was highly recommend . thanks for imput