Use the Perfect Read Guide Book to put the pieces together to indicate how many increments/dashes you need to turn your ball off the straight line at the hole. Using the stimp you selected for the day, circle zone number and lastly the slope % to see how many increments/dashes you need to turn your ball off the straight putt. Using a line drawn on the ball (preferable fine line permanent market) line up the ball straight at the hole then turn your putt up the fall line to indicate your starting line. All putts on the right side of the circle break right to left, all putts on the left side of the circle break left to right (regardless of uphill or downhill). Another way to think about it is aiming your ball to the high side every time. Remove the ball marker after you've made your increment/dash adjustments and your primary objective now is pace/speed to get the ball to the hole (12-18 inches past in a perfect world).

Calibration before the round:
On a practice green find a straight putt (hit as many putts to a hole until you find the straight putt) preferably with 2% or 3% slope. Next move to the X axis (90%) from the fall line at about 10 feet. Place a ball along that line using the marker and go through the process above (you already know you are at the X axis on the circle zone).

If you have a good feel for the slope select a green speed you feel comfortable with and stick with that number first. Use the perfect read book to indicate how many increments/dashes you need to play that putt (slope and green speed are the only things you'd have enter). Assuming you hit a putt with good pace (12-18 inches past the hole) you should be able to tell quickly if you need to increase or decrease the "stimp" your playing for the day. If missing on low side increase the stimp, if missing on the high side decrease the stimp. This will also calibrate to your "normal" speed. Some players are "die speed" putters and find themselves needing more break. They would be better suited to increase the stimp they are playing.

On the other side if you're a 2-3 feet past the hole all day player you're better jumping down a stimp speed, because that suits your style of putting better. Test around with this until you feel comfortable with that stimp speed for the day. This will be your "playable stimp" speed personal to your characteristics.

It's important you have a good idea of the slope % of the green when you are calibrating your speed also. Before adjusting stimp speeds you can also jump up or down a slope % to see if this is giving you a better read initially. As you might have had an error calculated that section.