It may take you a little time to practice the method before you are creating nice, small round bonds. It takes many attempts to understand how the bonding is working so please go back and read through the instructions once you've had some time working with the attachment technique.
Pay close attention to the dipping and applying steps as the system will not work if you stray too far from what you are told to do to make the bonds.
Many times bulky bond means the bond is too cool (the hair extension won't attach well this way, either) or the extension bundle you are attaching is too large. Keep in mind bundles you are dipping should not be larger than ⅛ inch of thickness.