[Solved]-Chart.js - Setting max Y axis value and keeping steps correct-Chart.js

figured it out. instead of supplying the max value on the y axis as i have been, i instead implemented the afterbuildticks callback and updated the ticks to have the correct increments.

yaxes: [{
  afterbuildticks: function(scale) {
  scale.ticks = updatechartticks(scale);
    return;
  },
  beforeupdate: function(oscale) {
    return;
  },
  ticks: {  
    beginatzero:true,
    // max:plugin.settings.maxdatavalue,
    maxtickslimit: 10
  }
}] 

my updatechartticks function loops over the existing ticks and determines the correct increment amount between the ticks. then i use that value to add my final "tick" which will always be greater than the largest data in the dataset.

var updatechartticks = function(scale) {
  var incrementamount = 0;
  var previousamount = 0;
  var newticks = [];
  newticks = scale.ticks;
  for (x=0;x<newticks.length;x++) {
    incrementamount = (previousamount - newticks[x]);
    previousamount = newticks[x];   
  }
  if (newticks.length > 2) {
    if (newticks[0] - newticks[1] != incrementamount) {
      newticks[0] = newticks[1] + incrementamount;                  
    }
  }         
  return newticks;          
};