It's a good idea. Glider pilots make use of audio variometers which provides a tone to indicate your rate of climb or decent. Basically, it beeps when you go

It's a good idea. Glider pilots make use of audio variometers which provides a tone to indicate your rate of climb or decent. Basically, it beeps when you go up and it beeps when you go down. Once you start accelerating up or down, it's sometimes difficult to tell what your rate is which is the reason for the instrument. Whether you are climbing or sinking, not having to look at the instrument is really helpful. This is particularly true in turbulent/rowdy conditions where you're 100% focused in on flying the glider.