For those with staking issues... as long as you've downloaded the current wallet, and added the nodes to the Sync.conf file as detailed in the OP... it hurts to say this, but the solution is to WAIT LONGER. I have .61 Sync, and it took a while, but it finally staked earlier today after having the wallet open since yesterday. Received my first stake shortly after of 0.0226 Sync. Hurry up and wait.