Go for it. It's a once in a lifetime experience. I took my son and two G-sons for a 45 min ride on the Aluminum Overcast out of Boeing Field in Seattle a number years ago. Fantastic experience. It is noisy, as someone already mentioned. Hard to imagine an eight hour flight over Germany in WW II. Youngest G-son sat in the bombardier's bubble as we flew over Puget Sound on a clear, sunny day. Years later, they still talk about it.
Great shot of Liberty Bell on Highway 20, not highway 2.
Excellent shot of the Triples-Mt Johannesberg ridge. I'm a Puget Sounder and the Cascade Pass area is one of my favorite regions in Washington's mountain ranges. I eagerly look forward to more pictures as you move higher on your hike. May I suggest more than one per post? Can't get enough.