First, a forged blade and stock removeall blade can be identicle in aperance. I can't speak for everyone, but I try to round everything and give the blade a flow with no sharp edges anywhere but the cutting edge. To me a knife that has sharp lines or edges anywhere, with the exception of a saber type grind line or dagger, is unfinished.
I have noticed that a lot of stock removeall blades have little or no distal taper, while a lot of forged blades do. This may not be aparent on small blades but on the bigger ones it is. Not to say that all are one way or the other, depends on the smith or grinder and the look he's going for.
There is no real easy way to tell that a blade is forged or just ground out, even the hammer finishes could be aplied to a stock removeall blade. I forge mine to about 90 percent shape, tange, bevels, tip, ricasso,distal tapper, the whole knifes there, just thicker. I then take it to the grinder and maybe it's just me, but it looks no diferent from one of my stock removeall blades, just less stock to be removed.
One way to tell with damascus is to look at the pattern. If the pattern follows the shape of the blade and gets finner at the edge and point it is probly forged to shape.
I might get in trouble here, but which is superior, stock removeall or forged? Sometimes the forged and sometimes the stock removeall. There is less to go wrong with stock removeall, but with proper forging and heat treat some steels show a marked advantage to forgeing over stock removeall. Also if it's forge to shape it's slightly stronger due to the grain following shape of the blade. In real life you will probly never notice much differance though. What it all boils down to is a combination of proper heat treat, edgeomitry, and desighn, with heat treat being the most important aspect in eigther to me.
This is all just observation and guess work on my part, so take it with a grain of salt!
