I know I mostly enjoy locust, hickory, ash, oak, maple and cherry. However I have large pine trees around the property that occasionally come down. Today I decided I wouldn't be a wood snob and cut one up for some shoulder season supply. OMG, I can't split it. I can split larger of the aformentioned hardwoods but I can split pine. How hard do you have to work to get 1/2 the btu's? If I had to split pine, I don't think I would be a wood burner. Is it possibly the type of pine?