OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has downgraded the issuer credit rating to “bbb” from “bbb+” and affirmed the financial strength rating of B++ (Good) of Southern Pioneer Property and Casualty Insurance Company (Southern Pioneer) (Jonesboro, AR). The outlook for both ratings has been revised to negative from stable. The ratings reflect Southern Pioneer's generally profitable historical earnings pattern, consistently positive operating cash flow, and management’s ability to implement va