Howdy oldjarhead100,
I have never made hash the Moroccan style, I have smoked a version of it from Mexico made with a silk scarf. I have made the dry ice hash and like the ease and the results of the process. I have read that the dry ice method is more thorough in the extraction of the cannabinoids. Potted is correct, a flat surface is far easier to remove the hash from than from a curved one. I use a piece of polycarbonate plastic to shake out the hash on because, a; it was cheaper than a piece of glass, and b; the static electrical charges tends to attracts more of the dust towards it for collection. For the next batch that I am currently curing, I'm even going to use the stems because they were so sticky when I was trimming up the buds for the jars. The first time I made the DIH, I used stems and leaf trim to practice on, I did not want to run the risk of ruining any good bud!
Good luck.