LOL..Yep. It's an art, it takes time to get it down pat.
One piece of advice, be sure to keep the machine clean, especially the tobacco slot. I use rubbing alcohol to clean, then Hoppes gun oil to lubricate. I've had my Supermatic 2 years, and it still works good.
Another thing, to minimize the mess, I took an old bread pan and velcroed the machine base to it so I can roll in my recliner, and the tray catches all the loose tobacco.
Another thing, some tobacco will come stringier than it needs to be. A cheap coffee grinder ($10 from Wal Mart) grinds the tobacco perfectly. Just don't overgrind.