Everything I’ve read says you can completely fill SSDs, like sample drives, that you only read. In practice, I find it useful to leave some space to allow for updates. So I try to leave 50-100GB free on 1TB SSDs. But there is nothing magical about that number.I know this is true for disks that are read/write, but is this necessary for sample read only drives? This has been a question I've had as to how full I can go on sample drives.
On another note, the QVO drives are less expensive because they have a slower write speed. However, their read speed is the same as EVO. Since sample drives only care about read speed once the samples are there, it's a good way to save a bit.