Owner's comments
Tree badly damaged in accident (early Feb 2010) - uprooted and trunk snapped.
May not survive, but likely to be replaced with identical variety.
Removed 2010.
Tree died summer 2010 after its M25 rootstock became infected by canker/crown/collar rot.
The original unexpected breakage of the tree may have been due to rot causing weakening just below ground level.
Grafts were taken from the now-dead tree and I now have it growing on MM111 rootstock.
2011:
Proving to have good resistance to scab and mildew. Not particularly prone to problems, other than very narrow branch angles which make a very upright tree.