I grew up using Wheaties because it always out fished everything else for us. No soda, the Wheaties cost enough then. To make the doughballs you take a handful and dip your hand in the water, pull it out and start squeezing the water out. It seems like it won't bind, but it will and when you get a ball that stays together set it aside and let it dry a little. In 15-30 minutes it will develop a rubbery consistency. You can fish them fresh, but only where you can gently lob them.
There are videos showing how to skin carp. If I remember right they start near the anal fin and using a sharp knife they cut the skin and scales away.