regular oil works in the same manner if done in large amounts or often enough so maybe he did not directly use SEO but any top pros total cc is absolutely off the chart and every pro I have ever talk to use low concentration and short esters, such is the norm among pros, bringing the total cc count through the roof per week
I used exclusively short esters for the last 8-12 weeks or so.
It's fucking exhausting.... small cycles become shit tons of pics..... 900mg/week = 9 shots a week, 3ccs/day, 1cc Test/1cc Tren/1cc Mast day MWF... and thats low gymrat doses.
I can only imagine running 3+grams week of short ester stuff.