just a single ester is fine, prop, cyp, enth all work same just the ester has shorter duration in body.
My personal favorite has always been cyp and than prop.
I did many vials of enth and seem to respond better to cyp but people swear its the same. I been doing this 20 yrs and I can tell I personally respond better to cyp.
Cyps half-life (or time the drug goes from 100% to 50% in body) is like 12.5 days for prop it is like 3 days enth around 14 days I believe.
I like faster acting prop as of late as it don't take 3 weeks to so effects its faster acting.