No advice really, there are so many pros and cons regarding the op that it really is the most personal choice. I made the choice to have Milo done to reduce the risk of cancer as a friend of mines dog developed it when he was about eight. But thats was my choice, there are probably many reasons not to get it done that I do not know.
GailyK81 I'm sure Shadow will be OK, He'll be a little sore but it shouldn't last long. Milo was back to his normal jovial self the very next day and still loves visiting the vets, he's still full of kisses for them so can't have been that bad!!!