... why didn't you just re-warm the glue with a hair dryer or a
light bulb or even a toaster oven?
Good question, two different answers:
1) For getting the pieces off the bench block I didn't do the above
because I wanted fast turn-around time. If you heat the block you
have a gooey time getting the old glue off the block because it's
sticky again. There's also a few problems with a warmed block in that
(a) it doesn't hold the pieces as firmly when you put new ones on and
(b) if it get's too warm it's not particularly comfortable to work
with (I'd learned this earlier). Part of this is "one batch out, new
batch in" so the block needs to be ready to go ASAP.
2) In terms of getting the glue off the disks I suppose that heating
them wouldn't be a bad idea but I wanted to minimize my effort there
too. Since I can just fish them out of the acetone and peel off the
glue I found that to be the most convenient for me.