An '88 Carvin LB75. Nice bass that was mine for years, until I inadvertently traded it to one of my brothers for a power amp some years ago (don't ask). For several years I played a fretless Jazz Bass as well, until the truss rod started coming through the fingerboard..
Pitch gets a little better every time I play it, and I'm getting past a head cold which probably means the ears are opening up a bit as well. Lines will be fine though. I had similar misgivings when I had to finally get bifocals, but I can see stuff so it's all good..
When I dropped-in on The Mothership in September, Mica threw that Rogue fretless at me and it absolutely rekindled a passion.
In addition to getting a fretless neck for the Lakland, I've looked into just buying a kit from Carvin for not much more $$, but the 35-inch scale on the Lakland sure makes that B-string speak..
John