More than weight, I find that balance is very important. I haven't measured the weight of my Elwood C5a, it's not hefty but it's not a lightweight either... But it's quite balanced, despite the lack of lightweight tuners. It hangs really well on my strap, and as such it's comfortable to play.
I'm still debating going for a Maruszczyk or a Valenti for my next bass project. I know I want a good 4 string to add to my arsenal (both my current 4 stringers are good enough but not outstanding instruments either - mexican Fender and indonesian Sterling SUB). There's quite a price difference (more than £850 - $1175) between the two, the Maruszczyk being the cheapest option here... plus the wait time for the Valenti is 8-9 months, whereas the Maruszczyk could be done in 3.
So yeah, here's what I'm thinking of, if I were to go the Maru route again:
-Inca Silver Metallic finish (might go with Satin, not sure. Adrian said that it's a bit stupid to go with Satin with a metallic finish as there's no shine to it, but hey, personal taste

)
-Alder body, maple neck and fretboard (matte finish). Classic.
-Hipshot Ultra light tuners
-Potentially B style bridge from Hipshot, maybe the standard Maru one, not sure yet.
-Passive
-Delano JC4-AL/M2 pickups: hum-cancelling split coil pickups, in 60's position (standard Maruszczyk position is 70's).
An all-round Jazz Bass... cheaper than an american made Fender
Or if I've got the patience and the money, I'll get something similar built with Valenti. Time will tell, not ordering for a few months anyway.