You should concentrate on what you think you know and less on what you suspect others don't. We are very fortunate to have the benefit of your wisdom and considerable experience on this board. Arrogance, however, gets a bit under my skin.
Let me correct one of your flipant and presumptive misunderstandings....I certainly do "know" (how) and "why the commercials could be long and short in a market such as silver.. at the same time."
(I could know more if there was any evidence that the PROF or anybody else could present that shows the size of the commercial hidden physical long position, in fact being more long than their documented short position.)
Now, I will admit I certainly don't know the full hand of the concentrated commercials who in fact do have very large documented short futures and options short positions ...They indeed could be net long by having a physical and / or derivative position more long than their public short with options operations making up for a small difference...Maybe they are flat, but then who is short?...You, or better should I say the PROF., speculates that the commercials who are net short in the futures are actually substantially overall net long and prospering from the move in the metals, particluarly Silver; I admit I don't know and can't from available date... Neither can he.
Perhaps we can move on to something else whereby we all can learn from your considerable proclaimed experience and expertise?