@franco, currently using a older set of Leki trekking poles with 16, 14, and 12 mm tubing diameters, lever-lock style mechanism.
@moondog55, Good question…I’m actually not sure of their absolute length, but the poles themselves extend to the “standard” 135 cm – I’d guess they’re roughly 20″ long. I’d like to find something around 6-8″ longer. I’ll get an actual measurement of the section length in a few hours.
I’m open to any type of MYOG or cobbling together of odds and ends. Specific examples and/or resources would be great!