I've been plowing for over 25 years. I have used only two plows. - a MM1 8ft HD on a 1989 K2500 GMC and a MM2 8 ft HD which I have on my current 2002 F350 7.3Diesel 8 ft. bed truck. This plow has quite a bit of rust. My neighbor is moving and wants to sell me a 2013 MM2 SD 7.6 with a poly cutting blade in excellent shape. I have never used any plow smaller than a 8ft HD. A fisher dealer told me that the attack angle (75 degrees) on the SD is too steep for my taller truck (I do three gravel drives) AND the 7.6 wide plow is not wide enough to clear snow from my front tires when I plow a curved driveway or radius.. Any thoughts would be appreciated. Thanks