chris o'connell and i climbed pinnacle on sat. it's thin and hollow but doable. i puched thru the crust in a couple of spots above the first pitch but didn't get too wet. the approach is a bear near the dow cache and thru the boulder field. we descended tucks trail and there is ice but it is thin in most areas. also, with the 20+" of snow that fell last week, tucks will probably be filled in within the next couple of weeks. if you're not comfortable leading grade 4-5 ice, i wouldn't recommend it and i would give it a week or 2 to really solidify.
take care and think cold!!