I too have been using the SPS with the online Graves Institute who has had close ties with the Canadian golfer - Moe Norman. There are other instructors as well out there, but the Graves' brothers break it down so well ... Yeah you can spend a lot but even with a limited budget this online SPS makes golf fun and less effort. The old Ben Hogan book is still a fave to go back to reference as well. You can drop 10+ strokes. I am still wanting to improve, not to be on a Senior Circuit but more than just social bogey golf. Recently my "aha" moment has been happening recently with better GIR stats and drives off the tee using the Arccos system on the course. Aloha.