For just softening an edge I use the LS130 (or pretty much any sander with a really light pass) for this I just use the flat pad or a hand sanding block. I think the decision on what method to use depends if it is really just softening the edge trying to put a very small roundover on the edge or a chamfer.
I tried the Veritas cornering tools, didn't like them. Seemed that I was always catching on grain or "wood fuzz".
Seth
I tried the Veritas cornering tools, didn't like them. Seemed that I was always catching on grain or "wood fuzz".
Seth