There's not a 505 adhesive seller in my city of over 300,000 so I buy it online. But I've actually been in quilting classes with other quilters trying to use another brand that is available, and literally been the only quilter without gummed up needles. I think your machine guy is all wet. If adhesive spray is causing your machine problems, you're not using it correctly. I spray lightly on the underside of the front and back, not the batting, and never had a problem with adhesive buildup on the needle and certainly never a problem with either my midarm or my DSM while using 505.