Padraig Harrington plays with swing ball in movie Happy Gilmore . R & A with devastating swing is legal under the rules of golf . Certainly Harrington 's use of the 'Happy Gilmore technique ' has got golf talking , but perhaps a copy of the film will not be found on the shelves next to coaching manuals just yet . Golf science expert Dr Mark Smith believes method could catch on .
Padraig Harrington plays with swing ball in movie Happy Gilmore . R & A with devastating swing is legal under the rules of golf . Golf science expert Dr Mark Smith believes method could catch on .