if you run into the issue of needing to increase dosages that much there are a couple of things to consider:
1. First off is your natural GH/IGF/insulin working good
2. Do you think that you have that much muscle that requires all this gear
3. Maybe you need a break to let your body catch up and normalize again
4. The sides from going to these higher and higher dosages will eventually catch up with you
You cannot keep increasing dosages expecting those big gains it just doesnt work like that.
I have been there and I can tell you that I was doing a gram of test too and didnt get the gains I wanted even at that dosage anymore. But After some time off and doing some IGF and GH I made more gains that I ever did on 1 gr of test and I only take 500-600mg test now.
Some food for thought bro