My first Polish force for the September War is a cavalry regiment, or at least part of one. Figures are a mix of Battlefront and Flames of War, with the dismounted elements being as important as the mounted ones.
The dismounted cavalry are the ones that I had so much trouble with due to frosting from two bad cans of Games Workshop Purity Seal. They were only saved from the scrapheap by a coating of olive oil (see blog entry) that somehow de-frosted them at least to a level at which they are usable. I'm hoping they improve with use as well.