they arent just opening, they're headlining like 1/2 the shows, and PT is headlining another half even though I think PT headlines one more than Opeth :-(...but anyway check out the website and the dates with the star * where the tour dates are, is headlined by Opeth....including the Philly show which im going too....And they'll both be playing the same amount of time who ever opens like thre DT/QS tour, im positive