Harvesting Sweet Potatoes

So for the second year I am growing sweet potatoes.  For the record here are the tips for harvesting them:

When to Harvest?  Frost and cold weather can hurt sweet potatoes at harvesttime even though you might think they're insulated underground. When frost kills and blackens the vines aboveground, decay can start in on the dead vines and pass down to the roots. If your sweet potato plants suffer a frost one night, cut the vines off right above the soil first thing the next morning. This may let you leave the potatoes in the ground for a few more days without injury. Try to dig the sweet potatoes on a dry, overcast day. Leaving them in direct sun for long can open pathways of infection that will damage the crop in storage. Dig gently around the hills, starting from a few feet away, so as not to slash any wandering roots with your shovel or fork.

Let Them Cure: Let the potatoes dry on the ground for a couple of hours. If you dig late in the day, don't leave the roots out overnight; you risk damage from cold weather and moisture. Don't wash the potatoes after the harvest, either. Sort any badly cut or bruised potatoes to eat first (they won't keep) and sort the rest according to size in boxes or baskets to cure before storage.  Curing can be done in 10 to 14 days by keeping sweet potatoes in a warm, dark place with some ventilation. The temperature should be 80° to 85° F with high humidity. Under these conditions, bruises and wounds will heal quickly, sealing out rot organisms. After curing, put the containers of sweet potatoes in a dry, well-ventilated area at 55° to 60° F with a relative humidity of 75 percent to 80 percent. Under ideal conditions, you can keep a mature crop until the next early harvest. If you can't store your sweet potatoes under these conditions, you may want to cook and freeze your harvest. Sweet potatoes bruise easily and can suffer quickly when handled in storage. It's best not to pick through them too often.