I can think of two IFBB pros I know that are or have been very successful that have never used more than 750mgs of test a week.
Yes, they have stacked with other things like winstrol etc.
When it comes to test though. 750mgs was their limit.
I get all my gains from knowing how to eat. I try to stay lean year round. So I eat very low carbs. I am happy where I am at. The thing is I still grow. 240 clean isn't bad at 8% or so.
If you need a gram right off the bat you should take a look at your diet!