So I operate several online wallets, the main one is http://wallet.trollcoinbase.com I want to implement cold storage, what percent of total funds should I put into cold storage? I want to save the most amount possible in case it gets hacked, but keep enough in so the site doesn't break.

TrollCoin Lottery!
Tickets are only 666TRL each!
8500TRL Jackpot!
1/13 Chances of winning!
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I will make a fork of this lottery for bounty.
For any altcoin.

Feathercoin Lottery!!!
Here are the new specifications!
1/12 chances of winning.
10ftc prize.
1ftc per ticket.
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Feathercoin Lottery!
http://micahmaclean.com/lottery/
1/25 chances of winning.
100ftc prize.
5ftc per ticket.
This website is in beta, zero graphics, hopefully there are no problems.
It also looks terrible, if any problems please say.

In order for trust to be built, here are the new specifications;
1/12 chances of winning
10ftc prize
1ftc per ticket