I'm not a welder or qualified to answer the question but with my 150A SIP machine I can spray transfer on the highest setting (6) and very fast wire speed, didn't note the number.
It was doing some heavy work last year and the first time I've experienced spray but it was really good to do and the welds were nice in appearance and without spatter.
The torch got very hot so it reminded me to think a but about duty cycle which wouldn't normally be a worry.