For me, fretless is like an addiction, and addiction is a disease...
My first “gateway” fretless was an 80’s Aria Pro II Integra that my friend gave me. It sounded like a wet turd so I ripped the frets out. This was in ‘93 when I had just started playing bass (but played guitar for 6 years before that, so I was not all that green to instruments). This was also the first time I encountered and Ebanol fingerboard and what happens to it when frets are ripped out of it.
I don’t know what happened to that bass...I just can’t for the life of me remember...
So I then bought a ‘94 Stingray fretless. Hands down the best production fretless ever. But 2 years later I wound up trading it for the L2500 I have now...I wanted a 5-string more than a fretless.
I’ve been missing that Stingray and wound up going through a handful of Chinese fretless basses from Rondo, it was literally a revolving door. I couldn’t afford to buy another Stingray, and was looking for that same playability and aggressive tone, but it was a futile search.
8 years later, after acquiring a taste for Jazz basses, I was able to put together a very fine fretless 5-string Jazz out of a Squier body and roasted maple/Ebony Warmoth neck. Turned out to be the best playing non-production fretless bass ever.
I currently have Fender Marcus Miller pickups out of the MM signature bass in it, and they sound great. But I will be getting a set of Quarter Pound Jazz pickups for it, because I still want that aggressive, thunderous growl I get out of them in my Fretted Jazz V.
When I feel the need for some fretless inspiration, I typically watch two videos, and both styles cant’d be further disconnected. Both music styles inspire me in different ways.