I have 2 Sandberg superlights, 4 and a 5, and a Spector RST, all under 6.6lbs…absolute joyous and sound great IMO…helped with shoulder and back pain tremendously. For the rig I’m using a Markbass Pure 4ohm 2x10 and an Elf, again superlight and pretty decent sound. Just made a really nice Paulowina P bass which is 7lbs…really chuffed how it came out with a lovely light roasted neck off eBay…total cost around £300 with Geezer Emg.