Are you talking Simple green already in a spray bottle or the concentrate like I am talking about.
That would be the spray bottle, But the concentrate still has water in it also (I don't have the info sheet for it to get the percentage.)
By using the water in the other mix, your diluting the alcohol a lot. that's why you have to use the higher 94% alcohol. (the alcohol helps with residue removal & evaporation)
Given if you wanted to use concentrate, you should mix the concentrate separately as per the SGC instructions first. Then use that mix to make the 50/50 mix of SG & Alcohol.
As I said if you or or anybody wants to use a different mix, that's fine.
This whole 50/50 or 1/3rd mix debate has been going on for a long time and I'm sure will continue. As long as whatever mix someone uses cleans their ball to their satisfaction that's what counts.