Sadly some of the locksmith courses have not been updated or never included adequate coverage of some topics.
You may want to compare what you are taught by Foley Belsaw vs Penn Foster. Penn Foster seems to ME to cover more information and is more recent.
One tactic that I have found useful is to use one of the resources that some states post to prepare for the exam in there jurisdiction. You can see if your training school covers what you need to know to pass the state issue exam.
http://www.idfpr.com/Renewals/apply/FORMS/LOCKSMITHStudyGuide.pdf is one example of what you need to know to write the exam to get a state issued locksmith license in Illinois.
If you check out the requirements for a locksmith license in Alberta Canada you can see the 4 year apprentice training and what you need to know.
http://tradesecrets.alberta.ca/SOURCES/PDFS/course_outlines/050_outline.pdf.
Its overkill but it gives you a standard that you can measure yourself to determine what you should either know or know about.
[url][url]http://www.amazon.ca/Locksmith-Security-Professionals-Study-Guide/dp/0071549811/ref=sr_1_2?ie=UTF8&qid=1446611693&sr=8-2&
keywords=locksmith++and+security+professionals[/url]
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This is study guide you can use to evaluate locksmith training and if it will cover material you need to know.
[url]http://www.amazon.ca/Locksmith-Security-Professionals-Study-Guide/dp/0071549811/ref=sr_1_2?ie=UTF8&qid=1446611693&sr=8-2&
keywords=locksmith++and+security+professionals[/url]
Last there is the
http://www.sopl.us that offers free mandatory course or you take some of the paid ones and you get certificates that I BELIEVE
are more respected than some of the schools like Belsaw.