depends on the test. i find 1g or more of sus very tolerable and feels alot like 750 of test-e with a continuous kickstart. i dont know if i can describe the difference in gains.
if you can still make good gains on 7 or 800mg then ide say dont change it. if it aint broke dont fix it. but, i have ventured off on afew cycles running a g to 1200 mg in acouple. i personally noticed very little difference between 1200 and 850.