Originally Posted by nostatic
There was a time where I was 97% fretless. I'd pull out the fretted for one or two tunes where I wanted a more traditional slap tone but beyond that it stayed in the bag. If your chops are up, it certainly can be done and get addicting because you can actually do a vibrator that doesn't always go sharp.
Ignoring the low-hanging fruit (since Gard picked it clean anyway), it is perfectly possible to do a vibrato
that goes both above and below the pitch on a fretted instrument. In fact, it's the only vibrato I use.