The de-glazing (verb) and sizing (verb) operations are different in several ways.
Honing (verb) to size should
not be undertaken with a Flex Hone . Rigid stones are used, usually with a controlled, incremental , micrometer type feed.
The initial metal removal starts with coarse grits and finishes with the fine stones to leave the desired cross hatch.
De-glazing should be done with
minimal metal removal, ideally no change in the bore diameter.
This may be done with spring loaded pivoting stones, beaded hones like the Flex Hone (noun) or in some cases simply by hand. Again, the goal is usually
not to alter the bore
size, the mission is to simply create a specific surface,on a burnished, or glazed, previously used bore.
De-glazing and sizing bores are indeed different operations. Regardless the nomenclature of the tools involved
Other types of "Hone" (noun) stones are often flat and used to create keen cutting edges on straight cutting tools as well. Same name, different tool, different operation.
Scotch Brite pads are available in a wide range of grits and materials. They are made specifically to produce a
uniform surface finish in industrial applications and
yes, frequently used in RC engine work to create a surface to seat new rings.
They can and do work well for that application.
People use them every day with fine results. Glaze broken, minimal metal removal, uniform finish.
Just as with any other method, choose the correct grit from the broad selection they offer.