The effect of a standard length hardwood footing on a softwood (cedar) shaft is negligible. It sometimes increases the spine by a pound or two, but that's about it. Doesn't add much weight to the front either, about 20-30 grains depending on the material and arrow diameter. Keep in mind, that with a standard size footing, you're removing the cedar that was already there and replacing it with a hardwood foot, so the increased weight is the difference between the weight of the cedar and the weight of the hardwood, not the hardwood's individual weight. On the other hand, if you're footing your shafts to increase their length, then you are adding more weight to the front of the shaft. Likewise, if you use a longer than normal hardwood foot, you can increase the front weight quite a bit.