The points made regarding having the durations of notes visible is totally irrelevant.
I make all of my drum notes (using a drum map) at 30 ticks - the 30 is purely an arbitrary low number.
You don't need to extend this for hi-hat or cymbal samples - all they do is trigger the sample held on disc or in RAM.
If what i am saying was wrong, then i would never hear a cymbal fade into decay over a period of several seconds, as they should cut out after 30 ticks.
But they don't, so you gain nothing by NOT using a drum map, apart from one very long standing bug/issue regarding mute & solo.
The expected behaviour is simple - you solo a kit piece in the drum map and you hear just that note.
But inserting the map "breaks" the link so in order to gain full control over the buttons in the drum map, you must solo the audio tracks AND also the Midi track.
This might sound inconvenient - and it can be - but I always put my drums into a drum folder, along with the Midi track
Now can just use the solo button on the folder itself. Now, back in the drum map, solo/mute works as expected