Just like to say I'm a nurse and I've tried loads of different products, She pee, She wee, Whiz, Uri femme etc etc, Doesn't matter what position I'm in or the control of my flow. They just don't work for me, I always get overflow/spillage, and I find them just not practical with trousers.
Short of contemplating catheterizing myself (I know several Medics who have!) I finally found a solution which covers the entire area and catches the wee to be poured out afterwards.
It was by luck from a medical rep that I found it and have used it 100% successfully every time (with Trousers). The downside was that it had to be prescribed but I've looked and the Manufactures sell it off prescription now and also spotted it on Amazon. The other downside is, it is more expensive. Perhaps have a search around the net for best prices.
I only know it as a Medical product 'Female Uri bag'
Manfred Sauer site:
http://www.manfredsauer.co.uk/urinals.asp
Amazon:
http://amzn.to/m7iXOo
If those links dont work put Manfred sauer uri bag into a search engine.
The site doesn't give great pictures but basically its a plastic mould with a rubber bag and snap lock lid. The bag tucks into the moulded space when not in use. Just take the lid off, loosen your trousers/knickers place it in position with the bag dangling just inside your trouser leg. Pee and let the bag fill up. (its a 1.2 litre bag so you wont fill it right up!) Gently remove out of position and lift up out of trouser leg/front and pour the urine away.
No exposing of bottoms or anything. You can fix the lid back on and it's leak proof so you can carry it discretely in a plastic bag somewhere until you are able to pour the content away. This has been super handy when I've needed a Pee in the night. I just go, then put the lid on and shove it in a plastic bag leave it by my tent door and then take it to a loo in the morning to pour away.
As for the Mooncup - Glasto has fallen at the wrong T.O.T.M for me for the last 4 years! I've taken my mooncup hovered, removed, rinsed with bottled water and replaced. I always carry wipes and handgel with me. Not had a problem yet.
I would advise anyone who has not tried it before to start using it MONTHS before Glasto or any festival to get used to it.
Just in case anyone is thinking I work for the company I don't I just work with people who have disabilities and use this product. It works for them and me!
Hope it's a hassle fee festival. Enjoy