I read posts like that all of the time.Good points, and when the balls are dirty, that makes even more difference.
At the average bar with a pool table you'll probably also have leveling issues, dirty cloth, funky rails, and a more extreme social dynamic, and it'll probably be Valley tables (at least in my experience). I don't know about harder or easier, but the challenges are very different.
I wonder what players would choose, if they had to make a bank shot to save their life: A nice 9 foot table with clean balls, or a crappy 7 foot table with dirty balls? I guess it would depend on the player.
I'm lucky that I have a poolroom less than a half hour away with 4 7 foot Diamonds that are level, in good shape,
and the balls are run through the machine after every use.
I have no excuses hahaha.
They have one 8 foot Diamond, 7 9 foot Diamonds, and 3 9 foot GC's and they keep them in all good shape.