Since nevermind brought this back up, i'd like to update it.
Basically i have practiced my own version of this shot at the range a few times and have SUCCESSFULLY used this shot ON THE COURSE, where it matters.
Also, as i've seen on the range, this technique does impart more spin on partial shots. I've used it off both fluffy lies as well as hardpan lies without issues with no "blading" at all. However i have practiced it at the range so i'm confident in the shot.
Just something new i've added to my short game arsenal