Now that's a novel idea
Don't you hate it when you're last pick and suddenly you're left with a position you never play so don't have a rune or mastery page set up or even know which set to choose as you don't have time to find a guide for your last minute pick?
Suddenly you find yourself with 30 or so seconds to choose a champ and set runes/masteries + the extra 10 seconds after everyone's locked. In that time do you just guess and then during loading you check a guide and realise you completely messed up?
Happens to me a lot, so what I'm suggesting is in the loading screen you can continue to set runes and masteries.
How about being able to chat to your team in the loading screen? That'll certainly help co-ordinate!
Now, I know there may be concerns because on the loading screen you'll see the oppositions summoners (we're talking draft mode so already know their champs) and you can adjust accordingly when you realise its really Irelia jungle or something. So, to counter this, their summoners remain hidden during loading until you click a 'confirm runes + masteries' button
**TL:DR - Allow us to continue changing runes & masteries and talk to our team mates in loading screen. **
Thoughts??