Last night for league I played at a poolhall I've never been to before. The tables must have been at least a few inches lower than normal. After about 10 minutes at the table, I started having lower back pain, which I haven't had in a while from playing pool (I usually get upper-mid back pain). I asked the home team if the tables are shorter, and they said yes, but didn't know by how much. Does anyone know what the average height is for a standard brunswick gold crown, (or any common 9footer) from the floor to the top of the rail? Thanks in advance.