Chuckanut
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Oh no - after I just preached the joy of travelling with just carry-on, I'll confess that I just upsized a bag to checked size. We're going to Machu Picchu/Galapagos and walking sticks are strongly recommended for the Galapagos. TSA doesn't allow hiking poles/walking sticks. So we figured we'd check one of our bags... but the hiking poles don't fit in the bag, even diagonal. So we upsized the bag and decided to bring our own mask/snorkel (leaving fins at home). We'll still have space to spare. I am still struggling with the idea of checking a bag and worse - that it's a bigger bag.
I had a similar problem. So I purchased a pair of fold-able walking poles. They fit in my carry on suitcase. Of course, they also take up valuable room, so that's fewer socks or such. They are not height adjustable, so make sure you get the right size.