I havent noticed any sonic differences at all really, but my ears have become more honed since then.
As with regards to the neck laquering, by laquering, i mean i got a can of spray i used on my motorbike, masked off the fretboard, and sprayed. I sprayed a few times, felt it was enough, let it dry, then used it. My playing has kinda given it a smoother finish. I played it pretty much everyday til i got my jazz about 4 weeks ago.