I played contra and fretless, I don't think it would be a wise desiscion to buy a fretless bass, one, it's gonna be hard to play without lines, especially i've you only been playing bass for 9 months, two, the fretless bass bas has a completely diffrent sound, I don't think I would ever want to use a fretless for metal...

I think it would be easier to play on a 5 string then a fretless 4 string..