-
could never get mine to stay in the designated angle
I think a lot of issues with cylindrical friction inclination adjusters like these are down to where your gravity load passes relative to the cylinder axis. The more off axis you are (e.g. sitting on the nose of the saddle, with the saddle pushed forward in the clamp), the more friction the clamp needs to generate to resist the resulting torque.
Enve copy turned up with no branding as requested. 173g doesn't seem too terrible. No import tax either which is nice.
Definitely need a shorter fixing though, this one protrudes a lot just as warned by @mdcc_tester