Proposed Metric Calendar part 2

(continuation of this post: http://www.polarjetstream.com/2017/07/proposed-metric-calandar.html )

Ways to identify the day in Metric:

-Year, doy (day of year)
-Year, month, dom (day of month)
-Year, woy (week of year) (woy 1.0 = doy 10, woy 2.2 = doy 22)

Possible work and off days using a metric week.

Gregorian

71%: 5 work days, 2 off days

Metric

80%: 8 works days then 2 off days OR 4 work days then 1 off day then 4 work days then 1 off day
70%: 7 work days then 3 off days OR 4 work days then 2 off days then 3 work days then 1 off day (not symmetrical)
60%:  6 work days then 4 off days OR 3 work days then 2 off days then 3 work days then 2 off days

I'd prefer 3 ON 2 OFF 3 ON 2 OFF
-5 to 8 contiguous work days seems excessive
-4 contiguous works days seems OK, but the corresponding 1 off day seems insufficient.

One way to look at it is splitting the week into 2 mini weeks
1st half: OFF ON ON ON OFF, 2nd half: OFF ON ON ON OFF

2 other ways (shifted)
1st half: OFF OFF ON ON ON 2nd half: OFF OFF ON ON ON
1st half: ON ON ON OFF OFF 2nd half:  ON ON ON OFF OFF

Holidays

Gregorian Oct 31 (Halloween) occurs mid week of the first week of Metric November. I suppose holidays could continue to be held in terms of Gregorian and translated (via doy) to Metric, instead of converted (last day of Metric Oct is Gregorian Oct 26/27.)

Adoption

Replacing the Gregorian system any time soon doesn't seem likely. However with dynamically generated calendars using computers having multiple calendar system being used in parallel seems reasonable. Year and day of year (doy) remains the same between the 2 systems for easy translations, so year/doy would be a good way to note dates. Both year and doy are based on Earth (spin around it's own axis and rotate around the Sun.)