I had put those second baffles in my wife's speedmaster because she felt it was just to loud. It did have a nice, more mellow sound.

I have the old originals scepters with no provision for extra baffles. And I like that way. LOUD

05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter