this is the exact problem i have right now , i dont know if my gear if fake or low dosed , so im trying to figure out how longto stay on my gear right now before switching to a sure thing to see the difference , or if i should just continue with what i have . however id imagine that if your gear is low dosed , depending how lowely , it will definetly take sometime for it to build up in your system again . if not the full 5 weeks again , maybe 3-4 . the fact it takes time to build in the system is because of the ester test E , E releases test for 2 weeks , and in time this steady release builds up , so statring over again with new gear will take time to build due to the ester and its slow release