I really suggest you stop making assumptions, and call the factory if you have technical questions about how and why Tesoro manufactures machines the way they do. As the ONLY Company that stands behind their machines for LIFE, I would say their design and manufacture procedures speak for themselves but, if you need more info, call Vince Gifford, and ask him.
There are about five members that like to stir up mud when it comes to Tesoro machines, all of who most likely know little or nothing about what techniques, screws, or adhesives are used by Tesoro. If “Hot Glue” was truly used - and was as inferior as these pretenders suggest, it seems to me there would be a lot of upset Sand Shark owners having to return their machines for repair. We ALL know that is NOT the case.
Before I joined this forum, Whites Dealers used to tell new members that the Sand Shark could not find gold, that it was just a cheap “starter machine.” There was no one here to call them out on the misinformation they were spreading to sell their more expensive machines that they make better commissions on. That doesn’t happen anymore, and they are very unhappy about it.
Make the call, and get the facts.