Hello everyone. I was medically retired from the Army in 2010 with 40% permanent disability as an E-5 but with E-4 pay because of the high 36. I was National Guard total 12 years of service with 3 good active duty years. I was 80% from VA than raised to 90% and recently increased to 100% PTSD permanent and total along with ratings for other conditions. I just found out that I could qualify for CRSC through an old Army buddy of mine because of me having to waive the retired Army pay in order to receive VA disability. I was also told that I can qualify for retro but only 6 years back not sure if it's true or not but I went and submitted the CRSC paper work. Can someone help me out with this crazy math please. VA pays me as married 2 children. Any help will be greatly appreciated.