Quoted from steve-o:https://pinside.com/pinball/market/shops/1030-pinitech/00415-piggy-deux-sys80b-daughterboard-fix-plug-and-play
^^^^^^^^^^
The daughterboard was the issue in my sisters Raven. After the daughterboard replacement her Raven has been rock-solid.
~Steveo
Great to see this kind of feedback! Glad the Piggy Deux solved your Raven issues!