[Razorsaw]

... that whenever they use the Dynaman powers, they almost always never succeed at doing anything?

Seriously. The only thing I remember them accomplishing with those powers is their weaponized henshin pose from 199 Heroes.

[Sentai Tamashii]

I've remember one episode where they used Dynaman and was successful, but yeah, more unsuccessfull than successful when it comes to Dynaman for sure