The question there is I just think your less restrictive. You could acheive the same thing with a shorter captube, but it would have to be quite shorter. A bad analysis of this might be, if your captube length would normally hold X watts, then two will hold 2X watts. In a sense we're doing the same thing as having dual evaporators, but only with one, and so we're creating double (give or take) the headroom.
It is great though! If our actual evaporators were bigger I'd try dual captube to it, but I think a larger diameter line or simply a shorter line can take care of that.