I was researching a new auger, too. I found that Jiffy will out last the rest and have be around the longest, too. I'm getting the Jiffy 3hp, 9". I think the 10" is just a little to big. Have you ever stepped in a 10" on the ice, it's a good way to break an ankle or get a wet foot. But, if your after the monster fish 10" is the way to go, I've never had a problem getting any of my fish threw a 8" or 9" hole.
One mans opinion. Good luck.