40 grain! That is a bunch of weight to put on any bowstring, especially a recurve or longbow string. Back when I tried them, not much consideration was given to weight and speed, other than it was common that shooters commonly preferred to shoot heavy shaft setups. Therefore, I never really knew the weight of the "No Glove."

When I read or hear about shooters that start having flight and grouping problems after they have added certain accessories to the bow, or added such features to their shafts such as cresting, painted or otherwise, I often wonder if they may have been at the min or max line on shaft spine, and it only took a bit of added weight or increased energy to change the spine of their shaft.

Knowing that certain changes can alter shaft spine is why I choose a shaft for compounds that is middle-of-the-road, and a bit weaker (spine) shaft for a recurve depending on what weight I know I will be adding e.g., string silencers, brush buttons, double nocks, serving diameter, limb covers, etc, that will reduce the energy of the bow. More critical for low draw weights and Dacron string.