Let's not bicker.... Let's simply face the FACTS.... The FBI Lab reported that there were NO blanket fibers on the carcano.
Can you explain how that could be possible if that rifle had been wrapped in that blanket for two months 
It could quite easily have been wrapped in something else before it was wrapped and hidden in the blanket in question.
I quite often double wrap things if I'm putting them away in storage, so its not exactly an absurd notion especially if it's an item that he probably didn't want discovered. In fact the more I think about it the more logical it would have been to have actually wrapped it in multiple layers.
More to the point, how would you explain the single blanket fibre the FBI found on the paper bag? It might be just a mere single fibre but do you not find it a bit strange that a fibre from a blanket in Ruth Paine's garage found turned up at the TSBD?