EOD means every other day. The reason why many people don’t like sustanon is because the combination of short and long acting esters. This then causes large flucuations in blood levels unless injected EOD.
It was created for hormone replacement therapy with the idea in mind of only having to visit the doc once a month for your injections. For bodybuilding purposes it’s far from ideal.
Next time stick with Eth or Cyp.
However, I think you will be fine with injecting 1 cc (250mg’s) every three days, which would put you at 500mg’s a week (well every six days)
EDIT: Cyp and Eth are just test with longer acting esters, thus the need to inject less often. Also sustanon will not help you “hold” on to more muscle, at least no more than any other test in my opinion. The only reason I can see someone deducting this is the “somewhat” built in taper you will get with the sustanon from the timed release of the different esters.
Tapering with sustanon seems like it could be a little tricky… (I dunno, I’m still pretty newbie on this shit as well)