I am about to buy a 1 1/2" and a 2" framing chisel from Barr Tools. These chisels come in lengths 13" and 17". These will be my first framing chisels so I am wondering what length is more appropriate. I thought I had read somewhere that "the longer the better" but now searching the internet(fox maple...etc) I haven't found anything that talks about what lengths are appropriate. Any info would be greatly appreciated. thanks! eric