OK, I'm seriously considering having an SEI bass built for me. I'm after a new high-end four string and thought rather than hunt round for months on end, then end up getting the one that meets the majority of my requirements... it might be better to shell out a whole wad of cash and get a bass made for me So, considering the option of a Lightwave pickup, as well as two magnetic p/ups (as many sound options as possible)... and I have a few questions that I'm hoping someone can answer, help with?! The battery Does the rechargable battery on these things have a 'charging memory' or a 'shelf life' of somesort? That is, does the 15 hours playing time you get, decrease with time/charges... and is the battery replaceable, if it dies in a few years? Which I'd expect it to. Knobs!!! So, if you had two magnetic p/ups (obviously with volume, blend and 3 band EQ) would this mean that you'd have to have an additional blend, and two additional tone pots for the Lightwave? Making a total of 8 pots on the bass! ...or could you have the EQ pots for the Lightwave combined with the EQ pots for the magnetic p/ups? Obviously I'll talk to the luthier about this, but I just wondered if anyone had any experience, or owned a lightwave and magnetic p/up bass? Is the sounds really as good as described on the web-site? Does anyone actually own one of these and swear by it? What do you perceive is longevity of the Lightwave system? - Is this a new invention that wil be here forever, or is it a fad that will dissapear PDQ? - I ask as if the system dies out quickly, then support for the system dies with it?! I'm dubious about the system, purely because I don't want to shell out for something that a) I'll not use, or b) might become obsolete and unservicable in say 10 years. Sounds like a long way off, but if I'm thinking about shelling out £££'s on a bass I want to know these things. That's all folks!!