Yeah, but here's how we have our "squirrel-proof" feeder set up:
We had a nice-looking pole that was just too short. When we test-fitted the feeder on it, the bottom of it was halfway from the ground. So Dad decided to drill two holes in the deck railing to support the pole. This way, no bears were able to get to it, unless they had really high IQs and climbed up the steps (When we had construction done on our home, we had to move the steps, so we have a railing blocking the entry from the steps). it was just far enough away that squirrels couldn't jump to it from a tree. We never had problems with the squirrels as much as we did when we put the hummer feeder out...
Anyway, because it was just the right height from the deck railing, all a squirrel had to do to get to the feeder was jump up onto the pole, which we made really slick, and keep jumping up until they got to the feeder. We never had any squirrels getting inside the cage until after we put the hummer feeder up...So now we have no feeders, therefore no birds coming, and this really have me <bleep>-ed off.