Hay!!! first cut vs second cut lol

Hello I order hay from www.farmerdave.biz and they list first cut and second cut hay. I have always got second cut for my girl but is there any netritinoal difference between second and first cut. I have heard second cut is more tender. should I also be buying first cut and mixing it in? Is second cut only bad in any way?



Their site lists first cut as being for bunnies and second cut as being for chinchillas but I know sometimes internet sites can not always have accurate information.