it seems to my hears this 78 model needs some adjustments and a better amp(?). originally its tone uses to get more overtones.
thinking electric sometimes helps though like for guitars this means taste and try various models until you find the right one.
this can change a musician playing sensation and the way he might feel his piano.
also this depends on the tone you wish to produce. round, sharp, bellish ...
looks like users like to hear the clear side of discreet harmonics. a nice preamp should do this job by boosting the right frequencies just where it needs. a nice phaser effect can do that too.