Our son put one on his (then) Ranger 29.. he added a bow eye low on the stem and ran a dyneema 'bobstay' to handle that load. It was about an 18-24 inch extension and worked well for him.
I did one using dyneema and a pc. of Hobie-cat boom on my Catalina 27. It stood the test this summer when the old C27 hit 7+ in 20+kt winds. I love it, and the "old salts" around me were rather impressed.
I would have to draw a picture because it is dis-assembled on the hard now.
If you need me to, let me know.