I used them exclusively last season and STILL CAN’T bring myself to recommend them for others. The overkill safety factor just isn’t there. I am a small guy, so it hasn’t been an issue, but a moderate-large sized guy definitely shouldn’t use them.
In fact, I have had some issues with my muddy boot slipping off the end of the carbon rods (even though they are rubber shrink wrapped). I am considering biting the bullet on a set of titanium bolts instead so I have a hex/Allen head to provide grip against a sideways foot slip. Y