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Rule of thumb for setting global-quick-tap-ms

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urob 2023-04-25 16:28:17 -04:00
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@ -158,6 +158,8 @@ few smaller (and larger) things to try.
* **False positives (cross-hand):** Increase `global-quick-tap-ms` (or set * **False positives (cross-hand):** Increase `global-quick-tap-ms` (or set
flavor to `tap-preferred`, which requires holding HRMs past tapping term to flavor to `tap-preferred`, which requires holding HRMs past tapping term to
activate) activate)
* **Noticeable delay when tapping HRMs:** Increase `global-quick-tap-ms`. As a rule of thumb,
you want to set it to at least `10500/x` where `x` is your usual WPM for English prose.[^4]
## Using combos instead of a symbol layer ## Using combos instead of a symbol layer
@ -289,10 +291,16 @@ are a few remaining issues:
`global-quick-tap` timeout. However, with both a large tapping-term and `global-quick-tap` timeout. However, with both a large tapping-term and
positional-hold-taps, the behavior is *not* actually sensitive to the positional-hold-taps, the behavior is *not* actually sensitive to the
`global-quick-tap` timing: All it does is reduce the delay in typing; i.e., variations `global-quick-tap` timing: All it does is reduce the delay in typing; i.e., variations
in typing speed won't affect *what* is being typed but merly *how fast* it appears on in typing speed won't affect *what* is being typed but merely *how fast* it appears on
the screen. the screen.
[^3]: The delay is determined by how quickly a key is released and is not [^3]: The delay is determined by how quickly a key is released and is not
directly related to the tapping-term. But regardless of its length, most directly related to the tapping-term. But regardless of its length, most
people still find it noticable and disruptive. people still find it noticable and disruptive.
[^4]: E.g, if your WPM is 60 or larger, then the default of 175ms (=10500/60)
should work well. The rule of thumb is based on an average character length
of 4.7 for English words. Taking into account 1 extra tap for `space`, this
yields a minimum `global-quick-tap-ms` of (60 * 1000) / (5.7 * x) ≈ 10500 / x
milliseconds. In practice, the rule of thumb tends to be on the safe side,
as home row taps tend to be faster than average.