Try size: 640 x 640 or 512 x 768 (SD 1.5) / 1024 x 1024 or 768 x 1024 (Pony)

Weights: 0.9~1

Clip skip: 1

Training material from bing

Pictures from CalicoMix 8.5 and KntanMIX XLpony

Note: If need to increase the probability of the ball appearing, please add "ball" or "golf ball" (sometimes out of control).