Voyager EMH
Slipper Wearing Plucker of Pheasants
No need to hole out on every hole to win a gross prize in a stableford.I don't think it's as big a deal as you're making out. Firstly, only a relatively small number of the field would be interested in the gross prize, i.e. those that have any chance of winning (low handicap players). Secondly, I assume it would be made clear before the event began that there was a gross prize, so these players would simply ensure they hole out on every hole.
Points scored against gross score on each hole. That is all that is meant by "gross prize" in a stableford.