For example, let 1STEEM=1$ and 1SBD=2$.
Your post makes 100$. If you choose 50/50 you'll get 50 STEEM POWER and 25 SBD.
If you do 100% you get 100 SP. Let's say you powered down and got 50 steem and for simplicity, the prices are still the same. If you sell those at the internal market, you'll receive 25 SBD whose value is 50$ and if you exchange it for btc you get 50$ worth of btc. Which is same in both the cases.@craig-grant You are a little wrong here. In the internal market the price is low because 1SBD is taken to be 1$ . The calculations on the website are all done in SBD. But as SBD is already trading at around 2$ you get the same amount by selling in both markets.