About 99% of the time any issues of layer seperation is caused by: inefficient cutting methods, dull tools, and lack of skill by the installer.
Of course that is not to say that we have never had a failure with the tips.
How is it that we should handle an improperly installed tip? Are we somehow responsible?
Usually, the only way to prove otherwise, is that say you bought a couple tips (they are likely from the same batch). Send me the unused one for us to check out. If there is something wrong, we'd be happy to replace that one plus the one lost.
Another way to make a claim, is to email me a picture of the tip. Sometimes we can tell from the pic.
Lastly, have the installer call us directly. We will ask a series of questions to get to the bottom of the issue.
The most desired outcome is a happy end-user and a re-educated and more skilled installer in the marketplace. Everybody wins.
Though I certainly can't recall your contacting me directly, I can not see there being no effort made to help resolve your situation. That just is not Tiger.
Edit: I forgot, here's my email
corey@tigerproducts.com and my office # 818-238-9906.