I am on the 5th week of the exact same cycle. All ttokkyo products I was going to run the winny for 6 weeks but I decided to run the winny 8 weeks so I bought some more but the 50mg kind.
Its weird but it seems like it just kicked in today, I had these huge hunger pains all day even after I ate. I also noticed veins in my forarms and bis were pumped, I was really starting to worry if this was ever going to kick in.