I'm working all over refining shapes using my small home made flat gradina, seen below with two small files.
My old friend, and one of the most important collectors of my marbles, Russell, said " Edmund, you must carve slower, it looks too easy, how are you going to get big prices for your marbles"? Russell, it's not easy, if it were I would quickly lose interest. The roughing out is fast.
I only have one speed carving. You must remember those large two and a half ton blocks that I reduced to thin figures and piles of dust when I was learning to carve.