NO NO NO! When you convert you only get $1 worth of Steem and if that SBD is selling for you $1.5 you just gave away $0.5. It's better to sell it and then buy STEEM on the open market.
When SBD is over $1 don't do 100% Power Up posts and don't use the internal conversion feature. Unless you just want burn cash.
So right now is actually a good time because SBD is currently 0.95$ worth and I would get 1$ worth of Steem?