that small flange imperfection can not only be fixed with a little bit of your time and effort, but it shouldnt make much difference since the seal is a donut gasket, not the flange.
okay so a quick question for you then bio..if you paid 1300 dollars, and yes before you say it i know you wouldnt, dut say you did, would you want to be fixing their mistakes...??? if you say yes then you need to lay off the drugs and booze buddy