danny, i just finished a 7 month long grapefruit experiment. the problem i had was the bitter taste of graprfruit peel all along. we used a lot of sugar and created a bitter concocktion at 16.3 abv. we backsweetened with some wine conditioner, some spenda brown sugar, and finally 2 bottles of pure maple syrup. i now call this thick carmel colored stuff "maple grapefruit". it is very interesting to drink. the maple syrup taste, the warming of the alcohol and the grapefruit aftertaste. we drink as a cordual, on the rocks in a salt rimmed glass, like a salty dog. hope i dont get throne off the forum for that! let us know how it comes out.