hahahaa it's true xD that's what happens when you do things in a hurry, evrything wrong xD
I had noticed about de 50/50 was not exactly 50/50 now I understand why! thank you!
so
1 STEEM > 1 SBD
I didn't understand this:

If you expect the STEEM value to drop in the near future, then you would make a profit going 50/50, now and trade the SBD at a low point.

my English for trading is not so good x.x; do you mean changing my SBD when Steem is cheaper?