A while back I cut a "truckle" (tall wheel) in half, and brined the two halves separately, and it worked fine.... The brining time may be reduced, depending on the shape of the cheese, because a thinner cheese has less distance to the middle, and more surface area for the same weight.... There is a rough rule of thumb that says brining time should be 1 hour per pound, per inch of thickness (smallest dimension), but I think we need longer than that for our small wheels.... I use up to twice that time for a cheese that should have more salt, but stick to that for one using PS to create holes, because it is inhibited by salt....
Bob