I am a major fan of the T-40, it's a very uniquely engineered bass that to this day hasn't really got any peers. If you absolutely must have a sub ten-pound bass, it won't work for you but I personally think the sound and feel is worth the weight.
On the weight - it's worth noting that the solid color T-40s are generally lighter. My '82 natural was nearly 12 pounds, but my old '80 white/maple was much lighter and my current '79 black/maple is only a little over 10lbs, very light by t-40 standards. I read somewhere that the solid color ones actually might be Poplar bodies instead of the heavy Ash of the natural and burst finishes, which were selected for grain pattern.