Don't wait. Buy it. It's the best combo of the four SB variations (300, 400, 350 and 450). The pups and the way they are placed on both scale versions (good, but unintentional, just cost effective, this is Gibson, ok?) sound great on the long scale and while the SB 300 isn't in any way bad (the rear pup is still a long way from the bridge) it's just not as astoundingly good as the SB 400 which has the characteristic of a good 60ies Jazz Bass. The SB 350 is the worst of the SBs because of the rear pup sounding all brittle due to the proximity to the bridge on a short scale. SB 400 are also more rare than SB 300.Here's how an unaltered SB 300 can sound (with a famous Ozzy Osbourne imposter!):Bradley's bassist uses it all the time. An SB 400 would sound as warm and full, but more distinct.Finally, Ilan, you're tall and lanky, an SB 300 would look like a toy on you! In comparison to the - in some quarters: much, yet utterly unjustly derided, you know who you are out there! - SB 300, an EB-0 in Charles Bradley's music becomes basically inaudible.
I came here to kick ass and cure neck dive, and I'm all out of neck dive!