I debate this all the time and have even seen charts but my opinion is complicated and simple all in one! Lol i think you hit at least 100 ed to get close to your 600 long ester and I will try again to articulate it. 100 mg's of prop raises free test plasma levels in about 6 hrs and is completly gone in 48 hrs. That was the most credible labs I saw through study. So if you hit 600 long ester a week and that test is slowly releasing over time and free test levels are rising from week to week since it grows more every week in a cycle given its half is at least 7 days then you can't compare 100 ed to it and say it is the same. The reason was answered above. 48 hrs in increased free test plama levels so the very most in available test that will be in your system at any given time is 200 mg's. You can't count the whole week because you will never have 700 mg's of test in your system at one time. So yes, there is more test in prop given the mg's are weight and in long ester test the weight of the ester is in that weight. This means you have more test in weight when talking about prop. My best guess without running the charts is that I would be at 100 ed on prop. It is stronger interms of mg for mg but the long term carry over the length of a cycle and increasing volume is not present. Long answer to complicated but I can never seem to articulate the perfect analogy for this. In a cycle the 100 ed or 150 eod is the minimum I would run when expecting to come out the other side with similar results compared to 600 long. When talking about actual weight and not considering free test plasma levels then juiceinators answer is as he says pretty close but he is saying the weight of test in test E after removing the ster weight is that number which means there is more test weight in prop at the identical mg's in whole product. Outside of weighing it and for purposes of running it stretched over a week is pretty low. When talking less than 600 p, especially considering I run about 400 ballpark off and on with hrt. Now thats our simple/complicated answers but if you want to run a cycle post stats, age and cycle history and include your proposed cycle as well.