"G" model H30
the "G" model was produced in 1988,1989, and 1990. The "T" or trunk top model came out some time in 1991. I have brochures on both and own a 1990 model.The I is 36'10" and the J is 9.75'. The best set up for this boat is a 200% spinaker with an oversize pole but i am afraid you may not be able to stand the phrf penalty if Lake michigan is still rating the base boat in the 174 -177 range.Ask around, i know there are some excellent sailmakers in your area (i have raced s27.9's against some of them in the past} that can custom fit sails for your boat as well as give you some pointers on how your particular boat needs to be sailed on each point of sail.Good luck