So yesterday I got my first 6 String, which is a fretless (pics soon

) and it's an absolutely fabulous instrument. Very good for only £139, I must say.
I've been playing Fretless on a 4 String on a Stagg BC300 for a year and I thought I'd jump straight to 6, just for the hell of it.
But what's really thrown me is the fact that there are no side dots or fret markings anywhere and I'm kind of semi guessing biggish changes in position and constantly checking intonation.
Any tips or advice on how to become totally comfortable with this new instrument?
Thanks.
