Jaysus, Severn, you are in a veritable fever of low-order creativity!!

The answer depends on the nature of the thread. Some have double-reply construction which provides longer thread life, others are built on a distinct bias, which offers less threadwear. The most primitive ones are built overly-simply and rely on injections of compressed hot air, which means they can blow a thread out very easily, as they tend to drift excessively.


A