I was at the range with one of the pilots I work with. He had brought out his CCP I believe it was a Kimber solo. He couldn't get through a 6 round magazine without 2-3 malfunctions. He said it was more reliable with his carry ammo but even then I think he had a malfunction. That's likely a combo of ammo and pistol but it was the only .380 issue I have seen. I would definitely prefer 9mm over .380 for a carry gun but if .380 is what you'll actually carry than carry it but if you will consistently carry a 9mm the extra versatility wont be something you'll regret. Also I believe 9mm ammo is generally less expensive than .380 due to economy of scale.
The Solo was Kimbers Edsel/Problem Child. Over priced JAMA MATIC.
LOL