Well,, I know what you mean. After 2 or three attachements.. maybe less. some glue.. probably more than you think gets imbedded in the lace.

THe best thing to do IMO is invest in a textile gun. But, I can't get myself to spend that much money on one.

I also no that after multiple mirro slides, and 99% alchohol.. you can wash the piece and then before it's completly dry, you can mirror slide again... and tons more glue will come out.. but that also has a tendancy to weaken the knots when you do a mirror slide with a wet piece.. so I wouldn't suggest that.

Some have mentioned baking soda cleaning, etc.. do that all at your own risk. I mainly just worry about getting it as clean as possible with 99 and a mirror clide, washing.. and maybe go to more extreme methods for the front lace as thats the most important to keep 100% clean.