Thanks for your reply Debbie.

Dino, here is Peggy Knight and her well-secured no-glue full cap:
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If it really stays on this well, I'd be able to do MMA lessons and such!

As for the undetectable edge, PK seems to have started a new base - vacuum with lace edges:
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If TopLace can do something like that - GREAT! If not, bangs will work. Guys might have to stick to a more skater/hippie/emo look.

Debbie, do you know if there is a difference between the thick and thin polyskin, and which one is better?