I find that bending pears is really difficult and they seem more likely to break than apples and peaches. I’ve broken non-graft pear branches trying to bend them. Those would have bent easily if they’d been apple. I think @scottfsmith said he’d noticed the same thing once.
I’ve grafted a lot of euro pear onto mystery landscape pear - the ones by me aren’t necessarily true "Bradford, they’re probably some hybrid thing. They still have the really upright branches and really pretty Fall foliage and little round brown fruits.
Most of my euro pear grafts look pretty good and are growing well. A couple of them have done a strange thing where they curl. They look like this picture @clarkinks posted T-budding tutorial - #135 by clarkinks But two years later he said he was getting lots of fruit from that tree, so I guess the weird curvy growth doesn’t really hurt.
Here is mine
I believe that picture is a sekel graft. There is also a Clara frijs and dutchess graft doing a similar thing.