Judgment - The Collation Project (extended)

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Draft 3x JUD (US) on Draftmancer US Simulation draft (or for xmage Draft 3x JUD xmage (US) on Draftmancer )
full block Draft ODY,TOR,JUD (US) on Draftmancer
- may miss up to two ODY common colours (20%,1%)
- may miss up to one TOR common colour (1%)
- may miss up to two JUD common colours (32%,1%) Simulation draft (or for xmage Draft ODY,TOR,JUD xmage (US) on Draftmancer
- may miss up to two ODY common colours (20%,1%)
- may miss up to one TOR common colour (1%)
- may miss up to two JUD common colours (32%,1%) and reorganised for common colour balance Draft ODY,TOR,JUD xmage (C) on Draftmancer )

Draft 3x JUD (Belgium) on Draftmancer Belgian Simulation draft (or for xmage Draft 3x JUD xmage (Belgium) on Draftmancer )
full block Draft ODY,TOR,JUD (Belgium) on Draftmancer
- may miss up to one ODY common colour (3%)
- may miss up to two TOR common colours (17%,0%)
- may miss up to two JUD common colours (39%,1%) Simulation draft (or for xmage Draft ODY,TOR,JUD xmage (Belgium) on Draftmancer
- may miss up to one ODY common colour (3%)
- may miss up to two TOR common colours (17%,0%)
- may miss up to two JUD common colours (39%,1%) )

Note the above is a window to the Judgment - The Collation Project

Common Colour Balance with fixed US sheets

WoTC could have maximised variance and achieved 100% packs with all five common colours with different run structures. All five black commons would need to be in run B.

If they had wanted to maximise colour distributon across the runs, run B could have consisted of five of each mono colour in a repeating colour pattern, leaving run A with 9x G, 9x W, 6x U, 6x R arranged in a repeating RGWUG RWGUW pattern.

Or alternatively, run A could have 11x U, 11x R, 4x G, 4x W arranged in a repeating URUGR URWUR UGRUW RURGU RUWRU RGURW pattern, and run B would have 10x G, 10x W, 5x B arranged in a repeating GWGWB pattern. (This is the format I've used for the demo file above.)