Yeah, my Strikemaster is 2HP with an 8" auger and it got through the ice at 11 Mile two years ago when it was 34" without any problems. The worst ice was the slushy stuff at Turquoise that same year (2007-200
. It was even thicker than the 34" at 11 Mile and thank goodness it was slushy because I had to shovel away the top layer just to bust through the bottom. The slushy stuff really can hang up your auger more than clear solid ice like you'll find at 11 Mile.
With that said, I'd be OK with 2HP on an 8" auger but would definitely get 3HP if you opt for 10" (which is bigger than necessary IMO).
Contributing to the plethora of opinions on this forum....