Cheers Andy,
I have saved it so I can compare side by side with a Hoya R72 shot. Yours has quite a different tint to my film filter ones taken on auto WB.
Normal rules apply here. Get a bit of kit and the weather changes to limit your possibilities to play.
So I have no good sunshine shots with the R72 filter.
Still we are on sun, sun, sun for the next few days.
Don