Must admit I was surprised that our vet said if it wasn't down at 6 months it probably wouldn't appear as this seems contrary to lots of other things I've read. He also warned that it would involve quite a long procedure, although if it can be done with keyhole, that doesn't seem to be the case either. Also, I read on an American website, that latest research shows the belief that undescended testical lead to tumours has also proved to be unfounded. Its really hard to know what to believe, however after reading here on COL how many still appear after 12 months, I think we'll bide our time for a bit.