Tim
I believe you are very tuned to the process and you have also received some excellent advice from other members. I want to stick my two cents worth in.
If you have not already sent your NOD I would suggest delaying as long as possible so you can collect additional evidence and lay the ground work for it. As others mentioned, you need to continue to receive treatment on your disabilities and now that you fully understand how the disabilities are rated and your current symptoms, you need to make sure the doctors hear you and make sure they write your complaints in your treatment records. That way, when the NOD review is conducted or when they send you the SOC you will have documents to support your response.
I believe too often we are inclined to provide an immediate response. When we do that, we are asking them to rely on the evidence already at their disposal. But if my advice is sound, in your delay, you might gather just enough evidence to show them that your disability is a little worst than it was when they conducted your C&P. The best chance you have in getting an immediate increase is in the initial NOD stage, I believe once VA digs in to support their original rating, you might experience problems in having them to back down.
When you go to the medical treatment facility, have a list of everything you want to discuss with the doctor especially those service connected disabilities. No matter what, tell the doctor what is going on with the service connected disabilities and make sure you see them writing your comments in the record. Down the road, that information will help. Lack of treatment or comments is going to hurt.
The reason I say the above is because often we go to the doctor if we are not hurting that very moment and they ask how we are doing we say FINE, GOOD etc. We forget to tell them about the problems we had last week. When you read the doctor treatment notes you will see “patient in for scheduled appointment, said he felt fine, denied this, denied that, only complained of --------“ When you file for an increase, this stuff hurts.
That’s my two cents.