Nope, you're not. That's why they make the 519 and now the new Sonus Custom that also has the wider spacing. I'm spec'ing one now for later this year. Played one at NAMM and fell in love with it.
Hmmmm
I really can't afford a new bass... but given that the sole remaning Zon dealer in SD is less than a mile from where I work, I may have to start saving... If I can find a 34" 5 string zon that I can *slap* I may be going into debt...!