Could use some advice from those with experience installing an in-ground basketball hoop. I bought a Spalding 60" hoop, and yesterday I dug the hole, mixed and poured the concrete, and set the footings for the hoop. I read from some other customers that they also poured cement in the pole once they attached it. Two questions: a) Does it make a big improvement (more sturdy, less shaking) to do that? b) How much of a pain in the ass is it to do? Basically, is it worth it? Any advice would be much appreciated.