how long I must wait to double bitcoin ?
No time plan, all depends on volume of new investments.
current average time since you start to eran is 4-5 hours, and around 2 days from data of creation of investment. But this can change if amount of new investment increase or decrease.
Hi MC... Can you advance the investment with payout address? because there is many investment with NOT SET payout address.. and how you can paying them? sorry my english is bad