[TheRealGioviok]

Might be worth trying to add back the tuning groups.

Passed STC:

Test  | cos_schedule
Elo   | 1.38 +- 1.07 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=16MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00]
Games | N: 140104 W: 37465 L: 36907 D: 65732
Penta | [1862, 16687, 32323, 17391, 1789]

https://ob.cwchess.org/test/1667/

Passed LTC:

Test  | cos_schedule
Elo   | 1.91 +- 1.52 (95%)
SPRT  | 40.0+0.40s Threads=1 Hash=64MB
LLR   | 2.96 (-2.94, 2.94) [0.00, 3.00]
Games | N: 56486 W: 14286 L: 13975 D: 28225
Penta | [285, 6669, 14005, 7018, 266]

https://ob.cwchess.org/test/1669/

Bench: 13689214