i dunno if this will help, or not.... but another visual for this move [which by the way, was one of the few moves that made sense to me right from the start... the name double*back*, and the bumping back twice] goes something like this:

picture yourself standing in the middle of a pie plate [choose your favourite pie, just cuz it will put a smile on your face].
step onto the rim with your R foot in relevé and swivel the R hip forward [1]
step onto the rim with your L foot in relevé and swivel the L hip forward [2]
step back into the middle of the pie plate with your R foot flat, and bump the R hip back twice at a slight angle to the back right corner - your L foot stays in relevé on the rim [3 & 4]
lift your L foot to step it back onto the rim in relevé and swivel the L hip forward [5]
step onto the rim with your R foot in relevé and swivel the R hip forward [6]
step back into the middle of the pie plate with your L foot flat, and bump the L hip back twice at a slight angle to the back left corner [7 & 8]
repeat for however many times you feel inclined :)

your feet get a little stained from the pie filling, but what the heck ;)

i'm one of these people who need to have visuals... and i think it was Shay who passed this visual on to me when i was first learning this move :) YAY Shay xo