hi i am new this this site have allways owned super jet and have just sold it and just got a rxp 155 2008 what is the best prop for this stock ski i am looking at a SR-CD-11/19 and putting a rive intake grate on it you all may say just buy a s/c 215 one but they love the petrol to much for my likeing i have kids ride it on this rxp 155 a tank last all day