Of course... in fact I've got two Variaxes! 😂
I was going to put a fretless neck one one, just to see, but haven't yet.
I've got plenty of other basses as I like the aesthetics as much as the sound, and money in the bank was doing nothing and money in the right bass just increases. The Variaxes might be the wrong basses but they were cheap when I bought them and have earnt their keep.
Edit: That's not my demo BTW, just incase you thought it was. 👍