How do you break in a slingshot?

Could you please elaborate on the process of breaking in a slingshot? Is it similar to breaking in a new baseball glove, where it requires a certain amount of use and flexing to reach its optimal performance? Or does it involve a specific method, such as applying oil or lubricant, to smooth out the material and ensure a more comfortable and accurate shot? I'm curious to know the best practices for preparing a slingshot for use and ensuring its longevity.