At the conclusion of this conversion, "Neshoba" took her shakedown, a coastal run from San Francisco to San Diego. During this cruise she attained her top speed of . At San Diego, she was committed to Amphibious Training at which time the new boat crews got a feel of their craft. She acted as flagship for Transport Squadron Thirteen whose commanding officer at that time was Commodore John G. Moyer, USN. The training was supposed to last a period of two weeks, but sudden changes in the Pacific Fleet organization made "Neshoba"s entrance on the scene of action imperative and the training was cut short. She proceeded to San Pedro, California, where final repairs and checkups were performed.