Honestly, it depends where you get your methyl tren. I got some great geneza MT from one source, but later on some buddies of mine got some from the same exact source that weren't so great. I no longer trust the quality of geneza in particular. So, if you can get actual oral tren from a reputable source then you could run it for 3-4 weeks at 500mcg to 1mg per day. Although I got explosive gains in just a few weeks with MT and prop... I thought you were trying to keep your cycles under the radar and get nice slow gains?
I would say just stick to a more solid oral with prop that will give you some decent more keepable gains like tbol. But that's just me