Hey Anthony!

Blackcoin was my first try in the POS coins, however, after a few days I saw that I need at least a hundread days to start to staking... So, Blackcoin is good if you have money to invest, since it is the first POS coin and give more credibility. I started with Piecoin because the 20% APR also because the quantity that you need to have at least on staking per day.

About the unlock... It is normal, don't worry I made this a few times too. HAHAHA

Cheers!