If you use glue, make sure to use epoxy and that it is a thick consistency to fill gaps. Carpenter's glue or sub-floor adhesive will not work because they will creep under load.
I have worked as an engineer for the New York State Dept of Transportation for 26 years...20 years in highway design and the last 6 in charge of highway construction. I have never heard of your "service", unless you mean that lawyers hire you as an expert witness for an accident...
