I like the concept of being able to switch from Srt to Ddrt with the same setup with no extra gear but a carabiner. Keep up the great work. I would love to run one when they hit production I'm in. Great idea!
Ok here is an OAR with a spring on the lower arm to make it "stick" better when transitioning from ascent to descent. The advantage of the mechanical OAR is that it has virtually no sitback, is quick and easy to install on the line, and is lasting well with continuous everyday use for nearly 2 years now (UK user, two arm OAR DdRT).