I think I'd ask, but I'd have to be prepared to discuss request. Do you think rather than just asking you can explain your reasons? I wish you luck with the decision. It must be really scary just in case he says no. I'm not great with advice but for me it has always been worth taking a risk with these things. Even if I don't get exactly what I want I know I am starting to go out and ask for things rather than letting life rule me. Hope that makes some sense.