FYI, I don't have access to Palo Cortado either, only Fino or Amontillado.

This cocktail is right up my alley! Sadly, I don't have access to oloroso sherry where I'm at. Would it be worth it to replace the oloroso with another type of dry sherry (if so, which one?), or would that mess up the drink entirely? If the oloroso is subbed, should I change the proportions as well? Thanks for this very informative website!