I don't know where this rumor got started that the low slope is "feathered in" using the breakpoint "flow" info below
2 ms PW (A9L), but I have to wonder when exactly it is cut in. I recently changed mine from 46.8 to 42.6 & back without really noticing much of a difference - just some light popping in the exhaust on decel when it was lowered to 42.6.
