ratfink,

Thanks for sending through your PlotDiff.

I am happy to report modifying the NT8 SpreadOscilator as built by NinjaTrader_Paul works as expected.

I do not know why SpreadOscilator works and TestSyncSeries does not.

Thanks again
Shannon

shansen 

ratfink, Thanks for sending through your PlotDiff. I am happy to report modifying the NT8 SpreadOscilator as built by NinjaTrader_Paul works as expected. I do not know why SpreadOscilator works and TestSyncSeries does not. Thanks again Shannon

Just checked the code and ignoring the frilly bits the only significant change is that he forces it to use two secondary series that have the same time period, i.e. bypassing the main chart series. All's fair in love and code.