Flatten your curls. They will wreck coins if rubbed against. They have flush style staplers that remedy this or use a small spoon to flatten.
That's more like it. Still a good idea not to mix different coins in flips together just for this reason. Sort by type so everything is uniform.
RD Red. A coin with full mint red luster. RB Red Brown. A coin with a mix of red luster and brown patina. BN Brown. A coin with full or nearly full brown patina. I don't see much luster which makes it's brown in my book. Still has good detail so overall a nice find.
Yeah, we've had this conversation when I first signed on to C/T. I knew it would get under the skin of some/many of the purists here and it did with him being the first one to chime in.
Just make sure they are flat. When removed they can and have scratched coins, this permanently damaging them.