I think the best approach to drawing more boats is to get donations for the prize money then gaurantee the money paid out. If you print that you are keeping half the money fishermen will not come..... Get donations ,gaurantee the prizes, then keep all the entry fees. Also it seems to be easier to get donations from vendors if you say that it is for charity and that all the money they donate is being paid out.... Most of the events on cumberland that say they are keeping a percent of the entries seem to flop. No BOATS.... But guarantee the pay out and Bang they come out in force.....