Cheers @nicolas, right, that makes sense why it wouldn’t work using “//” on all the variables as per Vonasi’s tip.

Now that I have an improved indicator with adjustable settings (as per the video above) and an optimised parameter set in the auto system (made in steps of 0.2 because 0.1 is too much to calculate/optimise), I get this warning when running an optimised backtest, please see screenshot ?

Ideally I’d want to just use one variable “devstopoptimised” or “p1” (with values ranging from 1 to 7) to test the whole range of values, from dev stop 1.0 (standard deviations) all the way up to dev stop 7.5 which is the widest stop used by Cynthia Kase… but that would alter the whole way that the Stop and Reverse SAR works in this indicator.