I observe various mitzvos that are not carried out according to the letter of the law in Shulchan Oruch. For example, taking 3 steps backward after Shemonah Esrei as described in OC 123
One bows and takes three steps backwards, all while still bowing. After the three steps, while still bowing and before straightening up: while saying "Oseh Shalom B'mromav" - turn one's head to the left; "Ya'aseh Shalom" - turn one's head to the right; then bow forward like a servant taking leave of the master.
I do not observe people bowing first and remaining bowed in the three steps.
I have heard that it is a good thing to retrieve mitzvos that are forgotten or ignored. The question is whether doing this opens up the question of מחזי כיוהרא - appearing arrogant.