It's called invincible as it flowers twice, meaning if the first gets hit by frost you'll get a later crop. Apparently sometimes you'll get two crops on the tree ripening at different times. 
These are my first pears from our tree here (I think I have three trees in fact) . Quite sharp at first bite, but enjoyable to eat. Lovely to have at the very tail end of October fresh from the tree. 
The pears were good this year, but I'm really looking forward to when my dwarf trees start to produce. This was the first one really from what I planted a few years ago. That said I did have some tiny Asian pears, but they were too small to eat, I should have thinned the fruit!
Other than Conference, what's your favourite pear?





