The logic used in the getswole.com sust article is a bit shaky at first but it has some merit in the end. With sust alone, you have to take into consideration that the cycle will not start to take real effect for a couple weeks. Also, many mistakenly think that a given ester just unzips all at once in the predetermined number of days of weeks its supposed to. Not so, and activation is especially spread out with the longer acting esters. Utilizing a consistent injection regime, this gradual hydrolization of esters serves to provide a smoother level of fluctuation in testosterone levels than simple mathematical models would have use believe.
It is true, however, if you use sust with bi or even tri-weekly injections your test levels will fluctuate more than they would had you used a single ester. Fluctuating test levels serves to produce a less efficient hormone profile for a bodybuilding cycle. Its safe to say then that sust is far from the most efficient drug for a steroid cycle. However, real world experiences prove that sust, though not the best product, does indeed work quite well. Through the use of bi-weekly or even more frequent injections, frontloading, stacking with a fast acting drug from the start of the cycle, etc, the sust blend can be quite an effective tool.
Personally, I'd not even think of doing sust, rather I choose to use omna. Same thing you say? So why do I use it? I can find omna very cheap. Much cheaper than sustanon and cheaper still than cyp and enanthate. True, I'm doing a less efficient cycle than I could be doing with a drug such as cyp. But used correctly, the sust blend works.