// stop loss juice points
settableWithVar double stopLoss = 1;

// juice points to start trailing at
settableWithVar double trailStart = 1;

// pullback juice points from crest to close position
settableWithVar double callbackRate = 0.3;

swappable TrailingStopJuicer makeJuicer() {
  new TrailingStopJuicer j;
  j.stopLossLimit(-stopLoss);
  j.stopLossEnabled(true);
  j.trailStart(trailStart);
  j.callbackRate(callbackRate);
  ret j;
}

selfType takeProfit(double tp) {
  ret trailStart(tp).callbackRate(0);
}