I know the Little Naches unit will be less of a quality hunt during muzzleloader season, due to the additional youth and over 65 permits valid in that unit this year. I think between the youth and over 65 hunts there are 125 permits during that October 3-9 season. These permits aren't only for the Little Naches unit, this new permit is called "North Yakima" and includes a few other units besides 346, but I'd guess a high percentage of the people who draw will likely choose to hunt Little Naches.
I had considered applying for the quality muzzleloader Peaches Ridge permit but with all the extra people who will likely be in Little Naches, I don't think I'll waste my points. Not saying it couldn't still be a great hunt, but if I'm going to burn my points I'd rather hunt a unit with less competition from other hunters.