Thanks. It's of course possible to record in take lanes, and yes the edit tool is useful there.
The reason I'm interested in doing it without take lanes is that it's quite easy, in the middle of, for example, recording myself singing at the computer (which is completely silent without moving parts for this very purpose), to record, audition, split-split, mute, record, audition, mute, record, audition, mute, and so on. I understand that many people like to use take lanes for a similar purpose, but I find that it's simpler and less busy to do everything on the track level. If for some reason it's impossible to avoid crossfading the muted takes, it's still simpler to dump the old takes into a track set as Archived than it is to use take lanes. It's possible under some circumstances just to let the muted takes crossfade themselves up a storm without interfering with active clips, though this is obnoxious if later one wants to compare takes.
Since, as I believe, though there may occasionally be a reason to create crossfades between unmuted and muted clips, there's no reason always to do so, I assume that there's a setting or technique which would prevent that behavior. I'm looking for help finding that setting or technique.