I just wrote a long, detailed post about making the original, rum version and then trying to emulate or exceed it with a bourbon version.
By the time I completed the post, I got disconnected from the site and could not save it to re-post it.
So I will compress here what I said: it works really well with rums. I was not able to make, though, a good bourbon version. The bourbon was too forward in the drink and didn't work.
However I think it is doable to make a good bourbon version (but still use the traditional other Zombie ingredients: pineapple and orange juices; lime juice; dash apricot or other brandy; sugar). I don't have currently the right ingredients, but it might work with, say, a mild bourbon (VG?) and/or Bernheim Wheat and/or an American blended whiskey for the spirit base. I still think Stagg, or any other high proof bourbon (RB?), would work well for the float.
I will try again (later ).
Any comments are appreciated.