It has no "purpose", Chet.

Tell ya what...think of it this way:

You know those '64 Impalas ya sometimes see that some people put those REALLY dinky little wheels and tires on along with that hydraulic suspension setup so they can make their really "charp Cheby" bounce up and down like some friggin' kangaroo?

(...well, it's the very same principle in action here....Cabron!)

Yep! Just like a good Single Malt Scotch, you might call me "an acquired taste" TOO.(among the many OTHER things you may care to call me, of course)