Don't forget that once you "win" the disability assessment, the pension entitlement battle must be won:
http://www.veterans.gc.ca/eng/sub.cfm?source=dispen
For example, actual case: 5% disability for a march fracture during battle fitness test. Absolute documentation. Soldier receives a 5% disability. Wrong. Incredibility, VAC determines that the military service played only a minimal part in the disability, and assesses 1/5 of an entitlement for a disability. Therefore 1/5 of 5% is 1%= 1% disability, 0 dollars.
Appeal: Review Hearing, followed by the Appeal Hearing. Three years later entitlement 3/5 granted. Therefore 3/5 of 5% = 3% disability.
Why 1/5 or 3/5 entitlement for an injury doing mandated battle fitness test is beyond me.
That said, I believe VAC approves, with documentation, Tinnitus at 5/5 entitlement , 5% and 10% disability.
At link:
Pension Entitlement is
* Based solely on the relationship between service and disability;
* Awarded in fifths: from one-fifth (1/5), if service played only a minimal part in the cause or worsening of the disability, to five fifths (5/5) if the disability was incurred during, or was caused in its entirety by military service;
* Entitlement may also be awarded for a disability which is a consequence of a pensioned service-related disability.
* Guided by Entitlement Eligibility Guidelines, policy statements used in determining the relationship of your medical condition or disability to military service.