I believe that probably leaving only one comp would be exaggerated...
Let's try waiting the end of N and C contests (03.12), and then starting only A & B league, without N and C...
Let Matacus go on as normal.
I just have doubts for the N league: I don't want to keep it, but I like Drago's proposal: " A contest can have the normal winners but also have another set of winners that aren't yet veterans", really wise!
Just let some newbies express their ideas..
Don't know about posting scores..
Maybe adding some rules, for example:
Wait for 4 people to post their solution before starting bets, or
Waiting 2 days for A league and 3 for B in case less than 4 people have posted their soluiton..
The number of players that have posted their solutions could be easily verified by counting messages like "I've posted mine" in the forum thread, left by who post his solution to the host.
What do you think?