No real pay. Go see the hundreds of ponzi threads, you can't "double the btc" it's an obvious scam...
Some people say got paid,
And others said NO!
Which is true?
@Admin.. let me ask you kind this opportunity:
You are generous to pay my first session with the highest investment value for Round 3, that would be appreciated.

Ex:
[Admin] ---> B 0.5 ---> [Doubling-System] ---> Results
/|\ |
| <--------------- (Initial deposit) -------- +
| back to you |
for me |
| |
| |
[Me] <----------------- (doubled amount) -------- +
to my wallet for next round
Here's for return address: 149QRybd52M4MNdcFXr9XR1kAVDpXQkrDq to receive the doubled amount from the results.

you owned your system, I hope you to consider this, to have more users welcome and interacts with the system.

In response to your first question, yes, SPEED-DOUBLER.CLUB successfully doubled each and every deposit during these last 3 rounds. I am here constantly monitoring the system for any issues and so far we haven't had any. (touch wood) We took our time to build this website with attention to detail so we don't have to deal with problems later. We did tested the whole system too, extensively.
Now following down your post, forgive me but I really don't understand what is exactly your problem, I can't understand the diagram either. Are you asking me to send you 0.5 BTC to the address you provided above? double 0.5 BTC and send 1 BTC? How do you expect us to do that if all the funds accumulated so far are not ours to manage. Funds belong to users partaking in the SPEED-BOOSTER.CLUB program. We never even had a deposit of 0.5 BTC, not even close to that amount. Maybe you can try explain your concerns more clearly so we understand and do our best to help.