I'll agree that for 90% of the work, just a file sharpening is all you need.
But for those that do not want to sand, or are working a gnarly wood and still desire those silky shavings:
Rolling a burr is not that hard to do, and I feel most people work too hard at it and ruin the edge. (I initially did just that). It does take the additional effort of smoothing the filed edge down to at least 600 grit paper (I usually go on to 1000), but it only takes a few strokes of the steel to produce the burr.
After filing and smoothing to 1000, I remove any burr by sliding it flat on the wet/dry paper.
I then rub the burnishing steel alongside my nose to get a bit of oil on it. (If you have dry skin, WD-40 or paraffin works) I draw it flat with the main surface off the edge for two strokes on each side. I then clamp the card in a vise and just push it straight down the edge. Re-oil between strokes. 1st stroke is flat. second stroke is about 3 degree down (repeat on other side). next stroke is about 5 degree down (repeat on other side). Go more if wanting a more aggressive cut.
You do not have to draw off the edge when turning the burr. Push it straight down the card.
The key is moderate constant pressure and more strokes if light is better. Too hard will "break" the edge causing a jagged burr.
As for quality, I have some scrapers from Lie-Nielson that are definitely harder, take a finer burr, and last longer. For them it takes me two strokes at each angle to roll the burr as compared to the Lynx 3 piece set, but both work equally well when sharp.
I am using a burnishing steel made from the valve stem of a Cummins diesel engine exhaust valve, so it is hard. If your steel gets scored from the card, you need a harder steel (No, Elizabeth, the shank of a common screwdriver is not a good steel IMHO).
I am self taught and do not pretend to be the expert, so please realize this is the way I do it, and not intended to be the only or best method.
JMTCW
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