Jay there is no need to use a UV filter I'm sure no one is going to persuade you otherwise so go ahead and use the filters. If you front element gets dirty clean it ... no big deal.

Many years ago I was photographing with a friend and he was a Lecia factory rep. Saw me using a UV filter over the lens and said "why do you think we make lens caps" Took a while to have those expensive (very) bare but never had a problem since !!! Your UV is adding another glass surface and can't say much for that !!!