The percentages you get re wings in a hybridised population don't mean a thing.
80% of the wing patterns lying in the Amm quadrant does not mean 80% Amm genetics.
The sample could have 10% Amm Genetics or 90% but you cannot draw that conclusion from scanning wings.
Kate Thompson looked at this recently as part of her PHD thesis at Leeds and wing morphometry as a tool in hybridised/mixed populations is basically a busted flush although many are reluctant to accept this in spite of the evidence.