I just tried it. Same pattern as Baido. Wow, I won 7-3. Not sure if I was playing exceptionally well, or it really makes that much of a difference. This is the first time I ever pattern racked a set. I think I will alternate back and forth between pattern and random, over the next 10 sets I play. Might take a few weeks, IDK, depending on how often I play. I'll report back with all the scores.
I did:
...2
..4 7
6 9 5
..8 3
...1
Oh, the 7 and 9 tied up on the right side of the table almost the same way 2 of the racks.
Well, last night I finished the last of the 10 sets. It only took me 5 months! ha ha.
Set #, date played, random/pattern, score
Set 1: 3/8, pattern, N7-G3
Set 2: 3/9, random, N3-G7
Set 3: 3/9, pattern, N1-G7
Set 4: 3/19, random, N3-G7
Set 5: 3/23, pattern, N0-G7
Set 6: 3/24, random, N0-G7
Set 7: 3/25, pattern, N1-G7
Set 8: 3/27, random, N3-G7
Set 9: 6/7, pattern, N0-G7
Set 10: 8/20, random, N1-G7
Totals over all sets:
Pattern: N9 -G35
Random: N10 -G35
Conclusion:
Pattern or random racking did not make any difference for my game.