I pin prop esters at EOD, and I haven't ever noticed my levels bouncing around too much. Plus, while some people get discomfort pinning prop, I've been fortunate not to have discomfort, so it can be an individual thing. Also, for every 100mg of test prop you get about 78mg of actual test, while for every 100mg of test cyp you only get about 64mg of test. (I'm probably not exactly right, but it's close to these numbers). The point is, you don't have to take as much prop per week to get the same amount of test in your system. So if you were running 500mg/wk of cyp, you could likely get away with running about 425mg/wk of the prop.