My thinking is that taping or whipping on a tip light would not cause any depremental effects to your beachcaster, surely its no different to the whipping used on your rod eyes.
As for glueing, cannot see a problem there either, your rod should have a layer of high build-up gloss laquer on it and the adhesive, no matter what it is (superglue to araldite) should not be a prob.
As for getting snagged up on it during a chuck,,,, sorry boys cannot help there, but it would be wise to make sure it was only a semi permenant fixture or you could loose the end of your rod.