Just to go ahead and state the obvious for the newer folks who might be reading this thread, the foremost difference is whether Escher's end-label reads 'light-green' or 'yellow-green'

Examples are seen in Jimmy's thread here: Escher End Labels - Straight Razor Place Forums

Sham I assume you are asking about a performance difference - and I don't know the answer and am interested in what the knowledgeable guys have to say about it