Matter of preference
Mine's always been on that setting... when stock... slightly BOMBed... heavily BOMBed. Unless you are getting too much smoke under heavy throttle/low boost, I say leave it there. Others may have different opinions.
When my truck was stock with only the EZ box, it was all I could do to get a small puff of smoke, would assume it will be the same for you. All the jumper is doing is to tell when it adds more fuel, i. e. , at which boost level. In the end you get the same amount of fuel added. That's my take on it anyhoo.
Scott W.