The 30X models sound a bit thinner than the higher models due to the electronics. I've A/B-ed a couple of older models and although I liked their sound, compared to a SR50X for ex they are a bit on the shy side
My 705 is a 2007 model. There are subtle differences between the models depending on the manufacturing year: the older models (up to 2007) have a tad thicker neck and chunkier bodies. They also have a wenge/bubinga neck combo. Then they've changed the neck combo to jatoba/bubinga (as opposed to the "always dry" wenge jatoba feels a bit oily, like it's waxed all the time) and they've started shaving the body (if you look at the upper horn now it has an almost triangular shape, like a shark fin, the older model have rounder horns). The models with the thinnest neck & body front to back are the ones made in 2009 (my favs). Then starting with 2010 the neck was "thickened" a bit again. Also in 2009 they've changed the preamps and added the mid switch, but overall the sound is brighter now. I know the specs on paper are the same, but in reality there are differences that become noticeable once you start switching between them.
One more (weird) thing regarding the 705 model: for some (strange) reason sometimes the body wings don't match (the grain looks different) so if someone wants to buy one, I suggest to go & see the bass in person as opposed to buying online. Also the figuring varies a lot (some are highly figured like yours and mine, others have almost no figuring).
PS: mine has also an interesting finish

I don't know why ('cause probably all the figuring is either a veneer sheet or just blowtorched), but the clear coat is wavy over those figuring lines

You don't see it with the naked eye, but it can be felt at touch

Makes it special