Why compensator button?

[geoffretired]

Furface, I like that way of thinking.I like the way you put it too. Nice post.

[Tropicalshot]

Originally Posted by bkupris

Yeah but the question is "why" does the button give an advantage and it has to be answered in technical terms...

The Pressure Button / Plunger Button

However you like to refer to it - pressure button, plunger button, cushion button, or cushion plunger button - Vic Berger manufactured the very first of these buttons. These were originally sold as 'Berger Buttons' hence pressure / plunger buttons were commonly known as Berger buttons (although I've since read that Vic Berger did not actually 'invent' the pressure button per se) however, please note that during the course of this article I will refer to them as either a i) Pressure Button, or ii) Cushion Plunger - the two terms being interchangeable.

The most obvious advantage of a pressure button is that it allows for very quick and easy adjustment of centre-shot for different diameter arrows. The pressure spring mechanism also provides another advantage, but the reason for this spring loaded part of the mechanism is often shrouded in mystery, confusion, and misunderstanding.

So why are pressure buttons used - why are they needed? The short answer to this is that prior to the invention of the pressure button archers concerned with accuracy faced the long, arduous - and often quite expensive - task of obtaining a set of arrows that were spined exactly right for their bow.

The invention of the pressure button allowed an archer to quickly 'tune-in' a wider range of arrow shafts so they could be made useable. There was no longer a need to buy a number of sets of shafts of slightly different spine ratings and experiment until the exact shaft, tip, and arrow length combination for your bow was found, all that was needed was to purchase shafts that were maybe just a little stiff but of 'round-about' the right spine and use the pressure button to do the fine tuning required to get them to shoot

more can be found here Archery Fundamentals - Beyond the Very Basic |
if you need to look further

[bkupris]

Yes more helpful info, thank you all