by Nelly » Sun Jan 17, 2016 7:23 pm
From the MB website:-
"Fit them with the tightly wound springs at the top, if not sure balance the spring in the middle of your finger the heavy end will show up.
TOP TIP, there will not be much difference with tight coils at the top or bottom, on the computer they work the same, its all about sprung and unsprung weight, either way always fit the tightly wound springs in the same position."