I figured out that the real use for this seemingly useless merit, is so that you can jump in battle.
Pressing Circle in battle will allow you or any of your familars to jump durring battle... so now you dont have to wait so long to grab the golden gliph floating painfully slow down to the ground... you can jump to grab it.
Other than that... yup useless merit... unless of course you like jumping.
You can jump in battle with that upgrade and it can avoid attacks as well, pretty useful. --- Ryoma / Sora / Naruto / Luffy / Ginta Young heroes between the ages of 12-17 make RPG and other video games better then older heroes 18-21 and over.