Thanx for the replies and i'll try and respond to all or most of the comments in one go....
I've taken shots with & without the UV and cant see any difference in IQ so just leave it on for protection which paid dividends recently when i went a**e over tit in the mud , the way i saved the gear from hitting the deck i should be playing in goal for England ,however a small piece of mud landed on the filter , lucky for me it was just mud , things could have been alot worse.....
I always use a lenshood....
Kilimanjaro not yet , but i'm off to Canada shortly and will be attempting to be a mountain goat for some of the time and again after recent events i'm going to keep the UV on.
So the original question / questions was , not do i bin the UV but when using the CPL do i need the UV at all, if so is it best in front or behind the CPL.
Cheers
Steve