I purchased a pair of Double Arrows and both smiled at me.
After coloring the bevel with marker, I put her on a Shapton 4000 Glasstone. After two rolling x passes the bevel was clean except the last 1/8"on the toe. Raise the scales a tad more on the end of the third pass. Done...clean bevel.
My DA's seem to have a softer steel than any other of my razors.
Between the soft steel and the speed of the Shapton, I had instant feedback on my technique.
Previous to the DA's I had tried to hone a 7/8" Wade & Butcher meat chopper with little success.
Now that same W&B is a Great shaver and the DA's aren't bad ether.