The Sport 535 is a fairly new turbo and there are onyl a handful of people that have them. The Sport 500 is very ahrd to argue with as there are some people VERY close to 500rwhp on them and they have such great spool up.
To this day I have not seen a compressor map for a true Sport 500 OR 535. With both of those in hand, I (or anyone else) could make a much better prediction as to how they would fare at various pressures.