I can't tell you either for sure as I have the tree but it hasn't fruited as of yet. I was given some fruits by someone, probably Murahilin, last year. We had it at a tasting that I would say was mid season from memory. I said from my memory, so you can't put too much stock in that. Blooming wise, it seems not to be particularly early or late, so I'm sticking with mid season. If I was to go further, one way or the other from my imperfect memory, I would say late/early to mid season. We have someone posting from Excalibur on the forum. I am sure they know.
Harry