Hey guys. I currently have a little over 2btc at my disposal. I was wondering what the safest and best way to flip that into 4btc, and the 4btc into 8btc, etc. I really want to save up for a powerful ASIC, and am stumped as to how to turn this into more. I've tried exchanges, but end up losing more than I gain. Im looking for a solid and sure way to make coin off of what I have currently. Thanks!
There's no safe and easy way to double your money. Higher the risk higher the return (generally)
And you're talking about a 100% increase, that's bound to either involve higher risk or slower return.
There's always cloud mining though. Think cloud

Cheers
Are you asking to make 4BTC out of 2BTC you can make 40 BTC in a single day Go for GAMBLING and you are the king man.. If you want to double your bitcoins then gambling is the best option to do so. If you are knowledegable about the sport that you are betting for you will come out as a winner for sure. All The Best.