I have had a ‘76 Thinline with original WRHB pickups in it for about a year and a half on long term loan. It’s a stunning and amazing guitar. I love recording rhythm parts with it. Has an airy blooming quality to the sound. The problem I have is when I record leads with it I feel like the sustain is completely lacking. I don’t expect Les Paul sustain, but more than what I’m getting. Any thoughts, or is this typical?