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Hi thanks for such a detailed response this is helpful, I do feel the scale might be easier for me to switch from guitar into it. fender jazz type basses have this narrower string spacing right? And this isnt too much of a problem with slapping either? Cheers again for the help
Yes jazz basses will generally have a narrower spacing than most P Basses, and that's mainly due to the nut width but I'm not sure they're actually diffferent at the bridge.
There's no reason not to get a short scale if that's what you want. I think the new Fender Mustang bass seems pretty cool. I will say this though, at the end of the day imo 98% of people could play a full size bass or whatever instrument, and could do so very well.
It really comes down to practice...we get used to whatever we're playing (feel-wise, and sound-wise). I play bass, guitar, and mandolin and don't have a problem switching between them, and have a 5 string bass that I play often. I also frequently use drop D on my 4, I recently had it strung BEAD, and frequently use alternate tunings on my Tele.
I will say that I'm by no means nearly as proficient at any of them as I want to be, but I'm telling you all this to say that I wouldn't limit my search to any specific criteria for a first bass other than price. You may find 34" P-bass gets you the sound you're trying to find at price you like. In that case, it may be a bit awkward at first but you'll get used to it. 30" scale basses feel weird to me because I don't have an instrument that size.
I'm by no means tall or have long arms, but I know guys that are smaller than me that play full size electric basses with no problems. I'd only say that full scale would be an issue if you're having to lock your elbow to reach the first fret. That's a problem, but other than that you can make it work if you want.
At the same time you might find that 30" bass is just way more comfortable and can still get you the sound you want, and in that case I say go for it.
However, my initial thought since you played metal on bass in a previous band is that you may have had it a little too low. I have my bass sitting higher than I like it for my right hand (and for the aesthetic), but where it's comfortable enough for both my hands.
My hand's are literally as large as my 5'0" wife's hands, and 5 string 34" scale bass isn't giving me any problems. The benefit of 5 if you're having wrist cramping problems is that you can move your hand further up the neck to reduce wrist issues and play a string down to get the same notes (low E would be fret 5 on B string).
Your question regarding if you'd be missing anything with a short scale, my answer is kinda. The strings aren't going to be as tight on the shorter scale. I don't think that actually translates to a less tight sound, BUT from the ones I've played it obviously feels less tight to your fingers and that at least makes me feel like the sound is less tight.
The other possible downside is that since the strings aren't as tight you'll typically end up pulling it further when plucking than a longer scale. That goes back to my previous point, it doesn't feel as tight (because the string physically isn't) which I don't like, but some people do like the more slinky feel. That also makes bending/vibrato easier if you incorporate those techniques in your playing.
So I think there's no reason to be afraid of a 5 string if you think you might like one, but going with a short scale is going to definitely require some trial to see if it works for you. Even if you feel like have short arms/small hands a short scale may not necessarily work for what you want, and a full length might be great.
