Hi Nature Boy,
In answer to your first question: The secret to a strong attachment is simple: you need to have a thoroughly clean scalp. It's well worth it to take an extra couple of minutes to make sure that your scalp is clean so that you get a solid bond. It sounds like your scalp was not completely clean and therefore the tape did not form a secure bond. A good product to use is 'Pure Adhesive Remover' to thoroughly clean your scalp. Or 91% rubbing alcohol and even Dawn Dishwashing Detergent. Don't be afraid to repeat the cleaning process more than once in order to make sure the scalp if free of all adhesive residue.
For the second question, our most popular tape is Super Tape. It does and excellent job for most people. I say 'most people' because there are always some hair wearers that have a certain body chemistry that doesn't work well with certain tapes and glues. Some people will love a certain tape or glue and swear by it. Then someone else will try it and it's 'just o.k.' We're all different. Our most popular glue is Walker Ultra Hold---works great for most people.
Regards,
John
http://toplace.com/