Personally I like grade B on pancakes, and stuff but by itself Ilike the flavor of medium it really gives the true flavor of maple.

Your right its not thicker its not less refined. I get the same thing all the time. I don't know where people get that from. they also think that the commercial grade is even more so than the GR B.

I also have had people asking for light amber why they only get light because it has less sugar in it ....What!!!???!!!

Gr B might have more nutrients and stuff slightly different stuff going on there from begining of the season to the end.

I have learned not to argue try lightly to correct them but if you're not going to get through because stuborness has set in...well they are the professional and the customer is right even if they are not really.