10mg ed vs 20mg eod won't even be close in results. Even with perfect rebound on off days and no cortisol overspill you still won't be in a consistent anabolic state. 20mg eod won't compinsate with double repair and building to make up for the off day, if you pulse expect half the results at best or don't bother with it and just run a regular cycle.
I think we're missing a few points here. Double the dosage means that it will take longer to get the steroid out of your system. so theoretically, you should have equal blood levels for equal the time . the difference is, during a pulse, orals are taken both before AND after lifting . 10mg dosing assumes only pre or post workout..[in most cases with people with 10mg pills].
so, jbry is right that there should be an equal muscle building component in a 10mg/d scheme vs a 20mg eod scheme. there is a difference though - during a pulse, there is more steroid in the system during more metabolically crucial times, as opposed to 10mg/d. there won't be a huge difference, but , i think there should be a slight advantage for muscle building on workout days as opposed to resting days. cortisol on offdays should be a nonissue due to the alleged rebound ; there should be a positive T:C ratio, and if not, you could always use a cortisol antagonist. also, allowing for that rebound you
should have less suppression and
*possibly* less liver stress than during a 10mg/d scheme. personally i'd suggest a 3 day a week pulse over a 4 day - maybe M/TH/Sat - not, MWF.
granted, there are some 'ifs' and theories at work here, but, they are plausible nonetheless.
so, what we have here is the possibility of a little less suppression, and a little bit more muscle building when compared to a 10mg/d scheme.
really, though, we can theorize all day long, but, the proof will
only come with bloodwork and measurements.
edit : whats wrong with me. i should be doing my homework lol- steroids are more interesting than math though