Staged tunes were not available yet when I got tuned. Ed mentioned I was his first stg1 GTI he had tuned.
But its also true for what jimlloyd40 said. Customs tailor it to your specific car, each engine is different and some can handle a bit more or less than others.
Mine did very well for 91oct with only K&N filter panel, Revo Inletpipe and RS7 plugs on Ed's dyno.
Green: Stock
Blue: Some other tuners etune
Pink: EQT 91 custom
View attachment 210428
Im also running his Stg1 E30 tune now. Didn't do custom on that one. Its just fantastic. I flip between the two tunes depending on if the area im driving to has E85 pump. My GTI is at 108k miles now. This dyno graph was done at 72k miles.