The YONEX Mavis series is the most economical option for practise sessions because to its close-to-feather shuttlecock flight characteristics and four to five times greater durability than a typical nylon shuttlecock.
Players should always use the shuttlecocks best suited to the playing environment.
The hardness of the skirt: The feather part of the nylon shuttlecock, varies depending on temperature.
In the cold: as the skirt becomes hard, it is prone to breaking.
In the hot: the skirt becomes softer and less likely to break, but the feel at impact is affected by the softer skirt.