I used one for a long time in the past but as I have a lot of recurve, I decided to buy another one for the new bow. It is easy to set up and tune. I shot a lot that the tip of the plunger even get grind off. If you shoot a lot like me, 100% sure bogentandler will help to to buy spare parts (plunger tips, springs, etc) like they did help me with them in the past.