J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment prebend

The oval you refer to that the mast fits into must be set so the front of the mast is 1 inch back from the forward edge of the molded step the mast sits on. If it is not, you need to move it. Some are mounted with screws so the plate can be loosened and moved. Others require you to redrill the mounting holes.