I am running the rxp-x with an r&d intake grate & went with a stock 2004 rxp venturi nozzel this has helped top end speed a lot,but I want to get just a little more,was wondering if any one knows a good prop combo that would work.I like to keep the ski as close to stock as possible and like minor changes that keep people wondering what I did.I do plan on changing out the opas system with the r&d pro series block of plate any good advise is welcome