Extreme

Anything that is going to offer the results you mentioned, 10lbs in 2 weeks, will have an androgenic effect. You DO NOT make gains like that on high anabolic gear like primo, equipoise or even deca, that kind of weight gain will involve water retention which is a result of a higher androgen product.

If I remember correctly M1T is very close to Dbol in chemical structure, possibly why the gains are so good?

I'm not a fan of Dbol personally but I'm intrigued to know why you say you wont touch it due to androgenicity, you want big gains and they don't come without some degree of down side. Any hormonal manipulation normally comes along with a degree of "paying the piper" at some point.