Tren is the absolute GOAT but you better make sure you use N2Guard with it. It comes with a lot of side effects. So I would not exceed 350 mg a week and I would not exceed it for 8 weeks.
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You can add some Anavar or T-Bol to it or you can add some Dianabol if you don't mind putting on a little water weight. Overall though testosterone is a good option 10-12 weeks and go 300-500mg/week.
You can go with some testosterone and Tbol instead. I think that would be a great option. 40 mg a day of Tbol is very good and testosterone is always good.