Some of us are smart enough to service our vehicles regularly to forestall problems. Others, unfortunately like me, are constantly late with scheduled maintenance. It’s a testament to good design and manufacturing that I don’t have more mechanical problems than I do.
Shooting is a bit like that: Constant maintenance, meaning practice, really is essential to keeping your shooting skills honed. I’m pretty sure all competitive shooters, in all disciplines, and at all levels from beginner to distinguished would agree. Practice is essential not just to get better, but to maintain skill levels.