Low doses of T

I think i remember reading somewhere on the forum or the site that some athletes could getaway with using in the neighborhood of 100-200mg of T per week while taking tribulis without their T/epiT ratio becoming disproportioned. If so what would be the merits of doing something like this? Is the dose low enough so as not to shut down endogeneous T letting someone stay on for long periods of time? Would it possibly be worth using say when T-17E comes out, something like 9 Tribex-500 a day plus 100-200mg of T-17E in the mornings?