Well, even though I love my GSR206 I wasn't exactly positive. I did mention the pickups not covering the strings uniformly. That would really turn a lot of people off. And I'd much prefer it had 24 frets. And they are hard to upgrade pickups (which is why I haven't). So "they" are not exactly wrong. But the happy news is IF you like the ibby tone and thin fast neck thing (with narrow spacing) they make a whole range of soundgear models from the low end GSR206 up through the SR 1206 etc and onto the BTB stuff. And I find NONE of it "poorly built". As usual it's all about money. For a toe in the 6er water, I'd stay cheap but try to maximize what you get for the cash. Hence my experience had me talking about these. The easiest way to "upgrade" Ibanez pickups is just move up to higher number models. Some have Nordie pickups which are hard to beat in my opinion.
I also mentioned the "blah" tone of the LTD (I called it "a more standard active 6 string tone" which some might interpret as "blah", but I don't necessarily agree with that term, it's just more commonplace) However, the feel, and workmanship of the LTD is superb. Mine s a tad heavy, though.
A Ken Smith is an amazing bass. I don't play mine much (Modulus TBX is my favorite 6, though string spacing is narrow, but B string is to die for) but every time I do get the KS out, I am always just amazed at how GOOD a bass that is! But cash-wise it isn't an entry level bass! Do as I say and not as I did. My first 6er was my fretless Alembic. just plunked 'em down because I was in love. In the end it turned out OK, but it would have been FAR better had I eased into 6 strings with a cheaper SX or Ibanez until I had a better idea of what I really wanted. There is a rule among amateur telescope makers that you can grind a 3" mirror, a 6" mirror, and a 12" mirror in less time and with less effort than if you just started to build a 12" mirror first. Same here.
As for recording well for a solo project, my choice would be the SX 6er with the neo magnet mod (See TB threads on subject). Sure, those single coil pickups are a pain picking up hum, but I swear with my modded SX you can just about hear your fingerprints on the strings! If you want it juiced up a bit more, you can add an Audere active preamp. But it's not my choice, its YOUR taste that counts here.