test is best

Moved to appropriate forum.

For starters, some would say 500mg/wk of Test may be good for you and others would say you need to inject Sust EOD (due to Test Prop), which would be 3 times a week equaling 750mg/wk. I personally use Sust more than any other Test and 500mg/wk is great for me. Winstrol (injectable) I use 300mg per wk. Sometimes I inject 50mg/day 6 days a week, sometimes I inject 100mg EOD. Frequent injects are crappy to me, especially with Winny. I have used the two together in a cycle once so far and it was phenomenal! Now Primobolan I can’t help you with, but I see no reason you can’t use it in that cycle. You should do a bit of research to help you better select how you choose to put this cycle together and how much of each you will need to use per week and at what duration.

Sust will be in your system for approx. 3 months and Winny (injectable) approx. 2 months I believe.

At 22 and 160lb you could easily put on that 10-20lb without the need for drugs.
Get down the store and start getting some decent food into yourself. to get bigger your gonna have to start eating big, start training hard and 10-20lb will pile on, no probs.
Seriously consider holding back on the gear, Im sure 99% of the guys on here will agree that your looking to the dark side far to early.

How did your cycle look like? Iam looking for a good cycle but I don´t seem to find any.