Siwash up or Siwash down?

[VTBasser]

Is there any particular advantage or reason to having the tail siwash pointing down or up? Are there particular lures you would point it in a specific direction?

I was thinking that for a surface lure you would always want it down. But for something you might bounce off the bottom like a sinking needle you would want it pointing up to reduce the chance of snagging.

For a middle water column swimmer would it matter?

Is there a better hookup percentage with it down verses up?