[LostHawg]

Thanks Bob. It does bring a rush to see one lying on the ground telling you that your efforts paid off.

Chris, I've found no difference in the flight of my arrows due to the orientation of the fletching. I shoot cock feather out off the shelf.

I've found that porpoising is usually something to do with the nock. Whether the nock isn't properly installed or the nock point is too high or low, there's something affecting the proper horizontal allignment of the shaft when the string is released. So, its usually the nock. OR, you're pushing the nock with your index finger as you draw... Try shooting with a release aid sometime to see if you get the same results. (I have no idea if this works, I've just heard it suggested a few times)