If memory serves me, the Gemini wasn’t a 14’ cat but measured a touch over 15’ and that was its “Achilles heel”, it didn’t fit any “recognised” size. It didn’t race against the 14’ cats sailing at the time and it wasn’t competitive against the 16’ cats. A bit like the Prindle 15’ around the same time - an odd size – and neither of them gained much of a following because of that.