The Scottsdale TEC Ally Blue Onset is a mallet putter from Ping's Scottsdale TEC line, built around multi-material construction that places mass low and around the perimeter for high MOI and stability. Its True Roll (TR) face insert uses variable-depth grooves, deeper in the centre and shallower toward the heel and toe, to equalise ball speed across the face for more consistent distance on off-centre strikes. The onset hosel suits players who like to see the head slightly ahead of the shaft.