This highlights a problem we have with many glues when double planking.
Some kits recently have perfectly cut out second layer planks using the magic of computer drafting and lasers.
I found CA problematic when making even small errors and pinholes couldn't be closed by a drop of water.
PVA made the thin veneer cup and cup and cup and the pin count shot up... frustrating.
Having burned myself many times with the tiny irons used to cover model airplanes, a bigger iron at full steam....
Single planking is not so bad if you are willing to putty and paint but maybe it's back to block models.
How many wood duck decoys are double planked:-)