Jon, there is no relation between the SP stake and the PAL stake when it comes to the vote worth. Other than the fact that the SP stake played a role in the size of the claimdrop. But even those PAL tokens could have been sold.
One can have 10 SP and 3300 staked PAL, if he wants, and his vote will be dust on Steem, but will be worth roughly 1 PAL on PalNet, right now.
The other way, one can have 50k SP and be an orca on Steem and have 0 staked PAL. His vote will be orca-sized on Steem and have no influence on PalNet.
The best way, if you believe in PalNet, is to have both SP stake and PAL stake.