I also have issues with fruit set on this variety. I have a 5 year old tree, but it has only fruited well once - last year. I feed it regularly, so I'm not sure what the issue is. It blooms every year, but no fruit. After 5 years, I'm done and the tree is on my short-list for removal. Amberroses, I note that your tree is in partial shade. Mine is also, and perhaps that's the issue.