schmazz makes a very good point.
it isn’t what you are using as much as how much of what you are using that makes the difference. Sustanon works fine as long as you are using enough of it and it is legit sust.
WHAT DOSES ARE YOU LOOKING TO DO?
Most steroids act in a pretty similar way (either through anrogenic or anabolic or both means of stimulating growth). Tren is very androgenic and primo is very anabolic. Test is an even mix of the two.
The advantage of tren and primo is that they don’t turn to estrogen in your body and give very little water retention so the gains are lean and are actual muscle (not just water weight). The disadvantage is that the tren will shut down your natural test pretty hard and without any exogenous test you dick will prob be limp by about 3 weeks into this cycle.
I will skip the usual post your stats routine and grilling you about diet and training and assume that you know what you are doing. If you don’t you should figure that out before gear because it is useless if you aren’t doing the basics right.
As for a cycle. If you are looking for lean gains I would use a low dose of test with tren and primo or masteron in a stack like this
W 1-8 Test E 300mg/w
W 1-8 Tren E 200mg/w
W 1-8 Masteron 200mg/w
or Primo 400mg/w
If you are relatively new to gear you may not even need the 3rd compound in there.