yes you can get a good edge with the rolls hone but i tell ya its going to take time figger on doing 1500 laps or more
+1 on this.
It takes long or even longer time to hone the blade if it wasn't honed before. In the end you will get yourself a real good shaver. I can't say about the grit of the original hone but i wouldn't get it into regular hone and so lose the original bevel angle.