Toby,
The mantra is only used to concentrate on a movement. It is not meant to be the trigger. The mantra of keep pulling is used to get yourself to a psychological trigger like a clicker or feather to nose. It sounds like you are still allowing the subconscious to tell itself when to release. The mantra by itself will only direct concentration, but with no psychotrigger, the Subcon will still attempt to shortcut the system to gain efficiency. Please call me so I can explain further and get you on the right track. 253-686-3623
Joel Turner