Hi Jay,
The total number of facilities chosen is the same between run 1 and run 2 (so yes, for example in run 1 we would solve for two, then run 2 we would solve for 1 in a and 1 in b).
We are checking the sum of the impedance and the average impedance in run 1 vs run 2 (both are improved in the subsets).
No we are not fixing any of the facilities at any point (not sure what this would show?).
I think I understand the differences between the two problem types, for the sake of understanding lets stick to minimize impedance. (we are not setting an impedance cutoff, so were hoping that maximise capacitated coverage would be optimising purely the impedance whilst honouring capacity caps).
As of yet, every run we have done has seen an improvement in the subset (which is why we are confused).
Many thanks,
Jake