What exactly is it?
Are there pics that demonstrate good edging from bad?
The blade on each skate has two edges, with a hallow in between them.
I don't know how many would agree with this, but I see a blade as having 4 - front and rear are also included and I don't see them as being the same because you can't skate on the front and the back of the blade simultaneously. Granted it is one edge per side but...?
Besides having two edges a figure blade is curved from the front to the back. This is called the radius or rocker.
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This is how "I think of it".This way, there's a total of eight edges:
RFO
RFI
RBO
RBI
LFO
LFI
LBO
LBI
This way, there's a total of eight edges:
RFO
RFI
RBO
RBI
LFO
LFI
LBO
LBI
Seanibu- when it says RFO it means that you are traveling forward on a outside edge. When it says RBO it means you are traveling backward on a outside edge. It doens't mean forward part of blade or back part of blade. There are still only two edges to each blade. Just making sure you understand this