Squier VM Fretless bridge question
 

Hello, i have a VM fretless but i can not get the intonation right. I have moved the saddles back but still its a little sharp and i cant move the saddles back anymore.
I have measured the distance from the nut to the 12th "fret" and its 17" the same to the G string saddle.
Should i move the bridge back ?

Thanks for any help.

Cesar