How you guys doing new to this site. I have a 79 ranger jet boat with the a Panther Jet. I havent had any probablems yet!! Ive pushed mine as far as it will go witch is 5600 rpms and it will only go 56mph (Gps) was used. I have heard  from a berkley jet mechanic that anything over 450 Horse power is bad on the panther jet. But he also was trying to have me convert to a berkley pump. I have a ? about the ruster tail mine seams to work but it dont fly as good as a berkley. Is there  anjustment to make or im i stuck with what I got? Also I dont have the cover over the jet is that the reason for all the back splash that I get in the back of the boat?