I purchased an Excalibur 40-200 cast iron router table with fence and dust collection system in 2015. I partially assembled it but because of work and other issues didn't get to completing the assembly till last week. When leveling the router lift plate, I noticed a dip fore and aft of the plate so that I could not precisely level the plate. I can slide a 0.018 inch feeler gauge under a straight edge in the middle of the table. Will this cause problems? I have been unable to contact General International for help. I would welcome any ideas. Thanks!