In theory the sites should be the same for the servicemember (SM) and the MLA site should have dependent info.
I called the DMDC and asked about this once and was told in no uncertain terms, use each site for its intended purpose. "But for the SM they would be the same, right?" and the response was "use each site for its intended purpose" so that is what I recommend when teaching SCRA.
These are two different databases, but in my opinion the core info on the SM who is active should be the same. Your experience tells me, "use each site for its intended purpose."
My opinions are not necessarily my employers.
Rules and Regs minus Relationships equals Resentment and Rebellion. John Maxwell