The hollowing begins.I did things differently this time,first job,form the outside of the crater,then drill a hole with the spindle gauge,then go in with a skew chisel(Pictured) on its side at the same angle as the outside of the crater,you can check the thickness is even with thickness calipers,or fingers.After that I used a cut off allen key ground flat like a bent scraper,to do the initial hollow behind the crater,then a longer one(Pictured) to go a bit deeper,this is where you have to take light cuts or it goes bang(experienced that,not nice),after this I used a Henry Taylor hollower,but with the short handle was to uncontrolable,so took it out of the handle and fitted it to a Sorby handle that is longer,with this I hollowed to about an 1 1/2" from the top of each crater.