Update
Updating database... Please wait.
Saturday 14 April 2018 at 01:55
The weird part is how deep and steep some of the dimples appear to be. if you look at that Houdini, they don't even follow the shape/curvature of the ball. it's like someone put small pebbles on the playfield and pounded them in. I guess I don't understand how these are being created.
The deep ones...
Source: http://pinside.com/pinball/forum/topic/steve-ritchie-discusses-pinball-playfield-dimpling/page/9#post-4337702