Pretty much sums up my experience (I'd add noisy electronics as well -even after shielding all cavities-). Had an L1505 for a year while also owning my first Stingray5 and they're leagues apart. Same thing with a friend's L2500 I've thoroughly tested in several occasions (nowadays he plays a Stingray5 too). OTOH another friend has an ASAT guitar and it's the first thing I look around the house for when visiting him, plays and sounds amazing.
EDIT: according to G&L's website the JB5 model might have a neck closer to that of a Stingray5, might be a good starting point for future G&L creations aimed at us thin neck lovers.
I always struggled with the 1505. The neck was fantastic and the build quality was great, but the electronics were too brittle for my taste. I finally let mine go after years of trying to convince myself I loved the tone.
The JB5s are amazing. Mine have become my first call basses.
