journeyofman,

I don't know how you'll feel about this suggestion because many people are scared of it but...
if you want to remove 100% of glue especially from a lace system, all you have to do is soak the base in a shallow bowl with some Autoglym Intensive Tar Remover.

Yes...its a car product! Well thats what its sold as, but basically its just a bunch of chemicals for breaking down and removing glue.
You soak the base for about 15-20 minutes and all the glue turns to a jelly that you rinse off under a running tap.
You then wash the system as you normally would and you're good to go.

I have been using it on lace systems (and now on a thin skin) for the last 10 years and never found a better product that can beat it.
It causes zero harm to the hair or base.

Lots of people have taken my advice and they too swear by it.
I found my attachments were lasting less and less time because each debond was leaving a small residue of old glue and it was building up over time.
I read that 1% of old glue = 10% less adhesion on the next attachment.

The Autoglym changed all that.