If we say he is good with creating enchanted items: armored coat, energy rings etc, Well, in Death mask, when Susan ask him why he do not carry enchanted items like the rope he use to tie Susan, he said he is not good enough. At the same time, we find out in White knight that Ramirez, who approximately the same age as Harry in Death mask, perhaps even younger, can make a shield glove with the principle of entropy which probably is as good as any of Harry shield bracelet before White knight.

Well, it never explicitly mentioned that Ramirez created it (I think).  Furthermore, assuming that Ramirez's bracelet only scatters physical objects, it wouldn't do diddly against sound, light, fire, force, etc. that Dresden's new shield can block.  AKA:Ramirez's shield has the same effects as Harry's original one.