That is a pretty cool hybrid. I think growing out a few seedlings might produce some interesting results. I planted a few seeds from a store bought Meyer Lemon many years ago and now have a Citremon tree (tentatively named the "Picone" Citremon, it has trifoliate leaves, so I know there is PT in the mix) that has proved very hardy to frost and the cold damp winter conditions we have in the Pacific NW. It hasn't fruited yet, but am hopeful the fruit will be an edible quality (Meyer lemon is a hybrid to begin with, so my Citremon will be a nice complex hybrid). I would be curious to find out what the results are from any seeds you germinate from that fruit you have. Again cool fruit.