Does anyone know of a reputable study of the performance vs. price of different brands and sources of router bits? For example, in looking at 1/2" radius carbide beading bits (1/2" shank), I find prices ranging from $17.00 to $32.99 between Freud, Amana, and MLCS bits (2 different suppliers of Freud bits were $27.12 and $32.99). Is there a "Consumer Reports" type of study that compares such things?