I'll develop. When I bought my Ray34, there was only the SBMM SUB (not to be confused with former US sub), Ray34CA (narrow neck, formerly SB14 model or so I think, pickup may differ between ceramic and AlNiCo) and Ray34 models. The compromises made to achieve the SUB series (now named Ray4) price point made it necessary to "voice" (i use the exact term used by a SBMM rep here on talkbass) the preamp so it sounds like a Stingray. So, and I take shortcuts here, the SUB series were made to be stingray copies at a very attractive price while the Ray34 is an asian clone of a stingray and naturally sounds close to one. So IF the Ray4 preamp is the same as the former SUB and IF the Ray24 shares the same preamp (as I've read but cannot warrant) THEN the Ray24 is a step below the Ray34. In any case you've got to find the 30% price difference somewhere and it's not just one band on the EQ that will make such a difference.
An EB classic stingray nut width is similar to a P-Bass nut width. Actually the Ray24 is named the Ray24CA, the letters CA being important. it means that, like an EB Sterling (not to be confused with Sterling by MusicMan brand), it has a narrow nut and Ceramic pickup which is supposed to bring more grit instead of being mellower as the Ray24CA is reported to be (maybe because the preamp is 'voiced' to do so, see later). It seems essentially to be the same as the Ray34CA except that the Ray34CA may have had AlNiCo pickups instead of ceramic as is now stated for the Ray24. I say 'may' because AlNiCo is what is written in several vendors specs sheet but spec sheet from SBMM is now unavailable. Interestingly enough, these sites say for the Ray34CA that "The preamp and pickup were re-voiced for this model, for a more organic feel and are noise free.". Again this "voice" term which makes me think that the Ray4 and Ray24 are not 'natural' Stingrays, but that's just my opinion. If you want to go for a narrow neck, I would consider a used SB14 which has the 3 band EQ preamp. It is however very probably brighter than the Ray34CA/Ray24 which is 'voiced' to be mellower. The SB14 is to the EB Sterling what the Ray 34 is to the Stingray, unfortunately it was discontinued.
I haven't tried any of these models but the Ray34 that I have and is really a good bass if you're after a Stingray. The other data I gathered while choosing which model I would buy. The SB14 was interesting but it was discontinued at the time I bought the Ray34 (18 months ago) and finding used SB14s here in Europe is difficult.
I was was tempted by the Ray24 because of the color and maple fret board and narrower neck but the 34 seems to be the better bass and closer to an actual Stingray. 
