Please let me first say that all claims are different. In my case, the DRO hearing request, wasted at least 2 years for me...
Again, let me say that all claims are different. Times and facts are different, etc. I have not found a time pattern in my many years concerning the VA.
For me, this time my claim, took 6 years until I received the BVA big brown envelope that said::
"BVA" ..."Therefore, the benefit sought on appeal has been granted in full."
the DRO hearing got bungled by the VARO, They failed to send me copies of my file, shredded or lost documents, misaddressed correspondence to me. Also, the VARO's DRO failed to notify me of any DRO hearing, so that got cancelled. Bad "timely manner notifications" delayed the traveling BVA hearing.,etc.
(my name could have be on the VA's "secret list") LOL
Well. after wasting years at VARO, and no DRO hearing, I had a BVA hearing May 2013, and won... I am, of course, waiting for the award letter now. ... Any day now!!! LOL.
Good luck with your claim.
My most positive thoughts are with you for a timely win,
Cmdr. Bob