Oyster mushroom - hole size and number

I have successfully experimented with a couple of oyster mushroom buckets, but now am trying it commercially for the first time on some barley straw I just got cheap by the large bale.

I am wondering what size and quantity of holes is best to drill in my 100 newly purchased recycled buckets.

They are 10l (2 1/2 gallon) and the growing space is 26cm across (just over 10") diameter, and 23cm (9") high.

This article suggests the ideal is 7cm (almost 3") diamter hole:  http://www.globalsciencebooks.info/Online/GSBOnline/images/0812/DBPBMB_2(1)/DBPBMB_2(1)45-46o.pdf

This articles says that the ratio should be 0.2cm2 / 1cm3    (area / volume).  This is more than the drillable area on the sides of the bucket:  https://improvemushroomcultivation.com/how-your-cropping-container-can-impact-your-mushroom-yield/
This seems a lot more than the holes that I have made before or seen in pictures on-line.

There also seems a lot of info left out in the articles.  Were they looking at the first flush only, or the total growth?   I have more than enough room in the converted garage to leave the buckets for several weeks to get several flushes before the barley straw is totally spent.

Before I waste months of time and buckets experimenting with this  myself, i am wondering if someone out there has already experimented with hole size and can share the results.

I have been growing for years and usually I use 5/16 hole and for a 3 gallon bucket, typically about 12-16 holes spaces out in a diamond pattern. You have to be concerned with fungus gnats getting to them. So stuff the holes with polyfil until they are ready to fruit. I pop the polyfil out and wash it really well, let it dry and use it again unless it has trich or penicillium growing on it.