Canada’s Bopcats epitomize the best and worst aspects of the rockabilly revival. They execute classics like “One Hand Loose” and “Rock House” with admirable spirit, yet their originals offer no new wrinkles beyond the admission of mild strains of hard-rock, R&B, etc. While the two pleasing Attic LPs are basically interchangeable, Wild Jungle Rock gets the edge for a smouldering cover of “Apache.”