I know it's nicknamed the suicide box, but it's there fo a reason. Construct a sensible, accurate well structured argument-with evidece to back up your claim- and have your say. Providing you don't use it as an opportunity to slate your RO you should at least make someone sit up and notice, and a response that answers your concerns would be required from your second RO. My advice, if you really think the report is unfair and not factually correct, have your say. It's no good a month later wishing you had written something, once it's in the hands of PMA it's too late and by not making comment you are effectively agreeing with the report.
Just remember, evidence your complaint and dont get personal.
Good Luck
