Ghosts and Hypo's are the same thing, if you want to get down to technicalities there are no true ghosts, Hypo is the correct term. To my knowledge I don't see a problem with mixing Hypo/Ghost lines. OG Orange Ghost is what most people are referring to when speaking of Hypos. Either way can't go wrong with mixing a Hypo into well...EVERYTHING!

Just my thoughts and opinions.

Have a good one