I think by the late 2000s they were still with JMP1 and ADA MP1, usuing a DSL and EL34-100-100 rac stuff as power amps. Janick as well.
Then Adrian started using the JVMs and haven't moved on. Even in his vidos at home he has one there. Dave kept using the JPM1/DSLs till recently. I'm not sure Janick but I'd not be surprised if he is still with the JMPs
It is the "old school" thing, it works for them, why changing? I'm pretty sure, after they finish a gig in front of 50,000 people, won't be asking the fans how they found their tone