Not really. Mica dangled the SII upgrade carrot in front of me this past winter when I spoke to her on another matter. I bought the Series I new for less than wholesale from a Wickersham personal friend this past winter, so it is as it was (i.e., not custom spec'd by me). That is to say, it's a standard point SI 34 scale 4-string with only a 5A quilt top and back lam as options. I wasn't in the market for anything at the time, but when I came across it, I couldn't pass up the opportunity to have a new (otherwise unaffordable) Series bass. For what I got it for, and considering it's doubtful I'd be able to afford a new custom spec'd (by me) Series I or II, I can afford to customize it. I'm just wondering if it's worth spending another grand to make it a hybrid Series II (alright, a Series I with SII Electronics, LOL!).
To further demonstrate my Alembic obsession, I had THG make me extra custom knobs just in case I went the SII route, LOL! They weren't cheap, but they are nice!