It looks that way to me as well, and Randy's playing an MIJ Contemporary Stratocaster. So those were from 1985 or later as the particular MIJ Strat was only made in 1985-86.
Of course by then Music Man had gone bankrupt (in early 1984) and their IP was purchased by Ernie Ball - so I suppose any endorsement deals they had with the original Music Man company were terminated with the bankruptcy so they were using whatever they wanted at that point in time. Ernie Ball only put the Stingray and Sabre basses back into production, they went their own way on guitars until 2016 when they produced an "updated but stripped down" Stingray guitar.
EB never really put the amps back into production - Sterling Ball claims there is still a pallet of MM amps stashed in one of their warehouses that came with what they bought at the bankruptcy auction - but several years ago they contracted with an Italian amp company (Markbass maybe??) to produce a revived version of a few of the amps, but not the RP models. EBMM never imported the revived amps to the USA; they were only available in other parts of the world.
