I dont think its possible to tell with any accuracy Ron.
Scenario 1 300 to 310 500 to 510 The 500 is much finer of a step than the 300.
Scenario 2 1 turn to 2 turns 3 turns to 4 3 to 4 will flow more than 1 to 2 as the needle has cleared the bore more.
LOL From here on out, its ALL Obama's & N20Ron's fault!