I wasn’t a fan of the Gel Cumulus 9 because of it’s flexibility and disproportional fit. I am a fan of the Gel Cumulus 10, especially if your foot is wide and you have a bunion. The Cumulus 10 has expanded the mesh in the area of the bump, which allows for less pressure in this area.
The cumulus 10 also has less flexibility in the forefoot than the 9 which can help alleviate ball of the foot pain.
The only downside of the Cumulus is the outsole, which is made of soft EVA which will tend to wear more quickly than a shoe with firm EVA. Both will accommodate a sport orthotic easily.