Flat-rate system becoming a dinosaur?

Everyone's thoughts, please.
As the years go by I have the feeling that the flat-rate pay system is becoming archaic. The cars are getting awfully complex which makes assigning a flat-rate time unrealistic or at least very difficult (oh, sure. It's easy for the factory to do it, right ?!). Also, with the ever increasing shift to CSI and quality work there is a built-in conflict.
We ask our techs to be very productive, pay them extra for "beating the time", etc and then sometimes wonder why quality suffers.
Who has experimented with alternatives and how do you keep a balance bewtween production volume and quality ?
I am considering revised pays plans with much heavier emphasis on "Fix it Right" but don't want productivity to fall in the hopper, either.
As the years go by I have the feeling that the flat-rate pay system is becoming archaic. The cars are getting awfully complex which makes assigning a flat-rate time unrealistic or at least very difficult (oh, sure. It's easy for the factory to do it, right ?!). Also, with the ever increasing shift to CSI and quality work there is a built-in conflict.
We ask our techs to be very productive, pay them extra for "beating the time", etc and then sometimes wonder why quality suffers.
Who has experimented with alternatives and how do you keep a balance bewtween production volume and quality ?
I am considering revised pays plans with much heavier emphasis on "Fix it Right" but don't want productivity to fall in the hopper, either.