Ok, thanks for the feedback. I think you may have tasted a cocktail grapefruit that was not ripe. I have a few cocktail trees from different sources and I do notice that one tree has fruits that is not as good as my original fruiting tree. My original tree scion wood came from a know CRFG (club member) friend who got one of the first cuttings when it was not out in the public. This is the fruit that is very sweet and juicy, everyone I give the fruits love it, much more than any grapefruit they have tasted. The second tree I purchase from a nursery (4yrs ago) has fruits that are not much to talk about, sounds like what you mentioned.