No, not at all, if you mean what I think you do (50/50 % split, versus the 100 % Steem Power split). It will only be profitable to select 100 % Power Up if SBD reaches a value that is less than $1. The ratio between Steem and SBD does not really affect this choice, since it all depends on the system treating the SBD as being pegged to $1 still, while it's much higher in reality.