Take your putter and set up 4 or 5 balls. Start hitting putts longer than 3 feet but shorter than 60 feet. Just find a tempo that you like. Once you find it, count it out. Using a count of one, two. Or one, two, and three. Regardless of the length of the putt or the swing, maintain the same tempo. Tempo is the pace, rhythm is the sequence, and timing is what holds it together. If your tempo changes, the rhythm changes, which means the timing also has to change. This makes it impossible to be consistent.
Take the other rod and hold it on the club shaft to extend up the lead side of your body. On the backswing, point the club shaft stick at the target line or just inside it. On the downswing, the club shaft stick needs to come down in front of the hip line stick and behind, or to the right, of you...