Mackay continued to collaborate with the Clubfoot Orchestra members, sitting in occasionally at the Bay Area Boat Club's parties. In 2011 Radon and SOOPA released Mackay's new album "Sometimes Like This I Talk" which features other members of the Stooges, and also the album "Machine Gun" from U.S.S. with Mackay on sax. Also in 2011, Mackay released "North Beach Jazz" featuring punk bassist Mike Watt, a member of the reunited Stooges. Mackay was also featured on the record "Titans", released in 2012 by the Portuguese stoner-psychedelic rock band Black Bombaim, playing sax on track 'C'. In 2014, he played on the song "A Higher Price To Pay", by the French heavy rock band the Meredith Hunters. He also toured with Bunktilt.