Which cluster?

CLUSTER 1: 11 frames (7 Starmie, 6 Blaziken)
1885: Slaking, Electrode, Marowak (swap Slaking for Starmie)
1886-1887: Houndoom, Electrode, Marowak (swap Houndoom for Starmie)
1888: Alakazam, Electrode, Blaziken (swap Alakazam for Starmie)
1889: Starmie, Blaziken, Electrode
1890-1893: Starmie, Blaziken, Claydol
1894: Starmie, Arcanine, Claydol
1895: Starmie, Arcanine, Golem (swap Golem for Metagross)

CLUSTER 2: 9 frames (6 Starmie, 5 Heracross)
2912-2914: Starmie, Electrode, Steelix (swap Steelix for Swampert)
2915: Starmie, Heracross, Steelix (swap Steelix for Swampert)
2916-2917: Starmie, Heracross, Swampert
2918-2020: Heracross, Swampert, Electrode

Cluster 2 takes 17 seconds longer to reach.