In Washington all questions surrounding whether or not a covenant not to compete is reasonable involve the following three factors:
1. Whether restraint is necessary for protection of business or goodwill of the employer.
2. Whether the covenant imposes upon the employee any greater restraint than is reasonbly necessary to secure employer's business or goodwill.
3. Whether degree of injury to the public is such loss of the service and skill of the employee as to warrant nonenforcement of the covenant.
Knight, Vale and Gregory v. McDaniel, 37 Wn.App. 366 (Division II 1984)