Sustanon is a much better compound .

Propionate is water based and pinned daily

Sustanon has propionate in it . a oil base . The depot of oil takes 1 or 2 maybe 3 days to be absorbed .Depending on the amount pinned . The compounds in sustanon are released over a period of those days . Pinning 2x/week makes it a much better source of mixed testosterones .