I will say this, if you are not familiar with pounding wedges, DO NOT buy some double tapers to start off with, especially in the winter. They are very brittle, and you have the increased risk of having a large piece of frozen wedge in your face. I went into the ER in November from a non-taper breaking and flying through my face, took some stitching to close up the gaping wound. It happens, just be safe when it's cold out. Another thing, don't just go beat, beat, beat, beat, on your wedge. Give it a pop, then wait a second or two. Everytime you hit a wedge, it sends a vibration that travels to the top of the tree, then back down. When you wait that short second, it clears the vibration. It makes a huge difference when jacking a tree, trust me. Also, have you ever thought about playing around with the "Dutchman"?