I got a small core shot right along an edge the other day along with a few other gouges. I took it to a local shop and made sure that they were going to base weld it with metalgrip. I got my skis back today and the repaired area was not even with the base, it was sunken in a bit even with a base grind. I scraped the area a little bit with my fingernail and was able to scrape the repair material off very easily. It doesn't seem to me that it will hold up very long. How durable is a base weld with metalgrip?