These are modded Flying Squirrels from the Modfather with two sides of the yo-yo cut with a sticker recessed response system using a Duncan Silicone Stickers. All of these yo-yos have been modded to professional standards.

Single vs double recess
A single recess simply means there is just one recess on one side of the yo-yo. The other side is left untouched. A double recess is when a recess is cut into both sides (halves) of the yo-yo.

A single side recess gives you enough grip with a bind to return the yo-yo. The double recess still plays un-responsive, but is a bit more forgiving if you don't do a perfect bind (i.e. there is double the amount of silicone area for the string to grab!). Both models WILL require a bind.

Each stock yo-yo bearing is given a thorough Modfather clean and is supplied dry. It is advised that you lightly lube the bearing.