Re: [MBZ] Theory vs Practice

[BenzBarn]

It's probably not true though unless there's actual slippage when the trans
shifts.
Shift quality is a mechanical process relating to vacuum on the modulator
valve and RPM.  Firm shifting is required under WOT or the trans would burn
up over time. Soft shifts are normal under light throttle or when you lift
off under hard acceleration. These are normal functions of a properly
working trans. Adjusting shift quality until you have firm shifts is OK but
not to the point of snapping your head off.  Normal maintenance probably has
more to do with longevity than does driving style.