Pointy stiletto tips

[blossom]

Does anyone use and can recommend some really pointy longish stiletto tips? Kind of like my pic below?

I'm sick of filing normal ones to this shape, takes forever.

 

[HollysRose]

Pro Impressions do some really nice ones.
http://proimpressions.com/shop/well-less-nail-tips/544-advance-clear-stiletto.html