I have a 1-6 HD on a 7.5 lbs 375 H&H. Love it. Plenty of ER. On low X it's as fast as a large aperture peep; on 6x you get the bare MQ to aim at things a long way off. You also get 10 mil per rev. Very versatile.
Not that it's as impactful as the mechanics, but I find the glass to be very good on the SWFA HD line.
