I think it makes a small difference and is worthwhile, even if it is a total waste of time it is free and will take you 10 minutes max.

another one to look for is different rated fuses when using monoblock amplifiers,  I  just tried a 3 amp in one and a 13amp  in the other and it made a small  difference in volume from one speaker to the other.

(well in my head it did)

try it and see...