If you are interested, here are two quotes from two "experts" on head gaskets, specifically discussing gaskets for bi-metal engines (alloy head on cast iron block) and the slipper plate design. The two quotes have been clipped from two different public internet forums and are about 11 years apart.
There a many discussions and comments on head gasket design, likes and dislikes, just like any other topic in the automotive realm.https://imgur.com/JAAAQ3T
- a clip from of public internet forum - EB Ted from engnbldr.https://imgur.com/m2VW02D
- a clip from a public internet forum - Fel Pro Team member.