Yes
But with it set to 70 or higher it is never the prevailing signal and doesn't change anything in the results if you take it out.
But to tweak to higher overall returns, the RSI short value is lowered and it starts coming into play and does improve overall results over taking it out.
I know, it seems backwards, but stick with me. We need to leave it in so it will be easier to tweak.
For example: If the RSI short overide is changed from 70 to 60 the 20 year results go from 172000% to 321000% and the number of trades goes from 740 to 1160.