dropped some new scumback 12's in my 1967 blackface twin reverb a few weeks ago. i decided on one Scumnico (vox bulldog clone) and an M75 (greenback clone) both in 100w iterations. i ordered them fully broken-in (why don't more vendors offer this?) and they sound sweet right out the box. nice full mids on both speakers. the scum has great, dark-ish alnico chime and jangle which perfectly compliments the bright, scooped twin. the M75 has warm, chimey attack and tight lows that adds presence to the scum. they're a bit pricey, but boy are they worth the price of admission. highly recommended.