Bump! (Revised opinion.)
I’m now using a mix of seasoning oils. I use flaxseed oil for the first five or six coats and then microwave-melted Crisco shortening for subsequent coats. (I’ve not used the Crisco oil, but may try it.)
I’ve concluded that flaxseed oil creates a smooth, durable coat but isn’t as non-stick as Crisco. Additionally, certain foods seem to remove the Crisco but not the flaxseed.
Flax seed oil is available from vitamin stores. Read the labels, though. Some brands have added omega oils and vitamins. They may affect seasoning results. Look for 100% organic filtered flaxseed oil.
Has anyone with a bit of seasoning experience used the Crisbee puck? There are a number of videos on youtube touting it.