Please note that the STC referred to above is not approved by RHC. As has been stated previously on this thread, blade tape is not approved by RHC for a variety of reasons.
Until the factory come up with a treatment, the only way to deal with this is thorough Check As every day. (In the UK that is mandatory for every helicopter) You don't need a ladder - you just need to look up to the bond line and maybe use a bright light to look ALONG the bond line.
What are talking here - 30 secs a blade ?
Isn't that what you were taught ?