Hi Henry --just a suggestion .. I `ve not yet used those stronger tapes, but if/when I go for a larger system later in the year, I`ll be using them.....now to your issue...either you are `sensitive`to something in the tape- adhesive, or it may just be trapped perspiration ...I`m wondering if you applied `scalp-protector` before you do your bond, would it provide a barrier between the tape - adhesive and your scalp skin ? It`s used mainly for oily skin types and provides a good foundation for adhesives to `take`to..... it`s on Debbie`s site and is reasonably- priced......it`s just an idea I had.....maybe others will have other ideas ? Paul.