Bruce_Pickle on "Tapered post sleeve"
Thursday 10 May 2018 at 06:36
Quoted from vid1900:Tapered posts cut way down on airballs, but that means it will take longer for the playfield to fully dimple, lol.
Not if you put them on upside down 
Source: http://pinside.com/pinball/forum/topic/tapered-post-sleeve#post-4389810