I have an adjustable quill stem on my cannondale and love it except for one thing.
It tends to loosen up every so often. NO big deal, but it's annoying and doesn't inspire confidence.
It's a trans-x tool free adjustable quill.
I love it because I can start out with the bars lowered in a more aggressive (relatively speaking) posture,
then if that gets tiring I can just pull off to the side and in 30 seconds or so raise the handlebars and finish the ride in upright comfort.
My question is related to regular bolt on adjustable stems that require a tool to adjust.
Do they also come loose or does the tool requirement keep it more secure.