As part of my reviews I have taken daily notes on blade and razor pairings, and the effectiveness of each shave. I will update and possibly modify this list in further reviews.
Good Combination
ATT Kronos R2/ Gillette 7 O'clock
PAA Bakelite/Feather
PAA DOC/Feather (1st use)
Blackbird/Gillette 7 O'Clock
Blackbird /Feather (3rd use)
Above the Tie R2/Perma-Sharp (3rd use)
Merkur Futur/Perma-Sharp (4th use, setting 6)
Blackbird/Personna Red (2nd use)
Wunderbar/Personna Red (1st use)
ATT R2/Personna Red (4th use)
ATT R2/Feather (3rd use)
ATT R2/Voskshod (1st use)
ATT R2/Rapira (1st use)
ATT R2/Astra SP (1st use)
ATT R2/Astra SP (2nd use)
ATT R2/Astra SP (3rd use)
Neutral/Moderately Good
The assassin/Perma-Sharp (1st use)
Hone Type 15/Perma-Sharp (2nd use)
Hone Type 15/Personna Red (1st use)
R89/Vokshod (2nd use)
PAA DOC/Voskhod (3rd use)
Bad Combination
PAA DOC/Gillette 7 O'Clock