More test is more gains until a point. I have run 1250mg test e for 12 weeks with 300-600mg deca. I liked it worked well. It really depends on the person running the testosterone how much to dht and estrogen are they senstiev to the sides, etc. Are they blocking estrogen correctly if needed or dht. For bulking a like high test, higher i have ever run 1750mg for a couple weeks worked good, definetely increases BP a lot. Was holding a lot of water so used 12.5mg HCTZ to push some water out.