I would like to know how current testnet mining compares to real mining once zcash releases. Currently, I am mining what seems like an absurd amount of ZEC; about 5000 after 3 days. I seem to find new blocks very fast. Is this normal for everyone? Is this because not many people are currently mining? I'm also assuming the difficulty is scaled down for testing purposes? What are reasonable expectations for release in terms of ZEC/day if I'm getting about 1666ZEC/day now?

I notice that my connection count is 1, shouldn't I be connected to multiple nodes, or does everyone just connect to a single node (testnet node which acts more like a hub) currently for testing purposes.

Final question. I would like to understand equihash better and figure out what exactly we are computing, but the only resource I can find is the one paper with mathematical notations beyond my current understanding. I'm slowly going through it, but if anyone knows of any other material that is easier to understand and more directly related to zcash that would be greatly appreciated.

Thanks in advance.