I'm not entirely clear on what you're asking but I think the DC discusssion and Ad boards are the nucleus of TER activity in the area.

MD and VA are both expansive, so if you are going to be in an area distant to DC you should still use the respective board (e.g if you are touring Richmond, it is usually best to use the VA boards - but still use the DC boards as Richmond, VA clients do peruse the DC ad/discussion boards regularly.)

a lot advertise for Tysons Corner on  the DC  ad Boards ..  and then I notice  the VA ad Board for TC as well
so I was kinda  asking what board get's more activity  or they about the same ?
, be my first time using either ad Board  just seeing what might be the best or maybe they are the same as for  
traffic   and visitors ... ?

Traditionally everything in DC including Tysons was on the DC board. The VA board was added to address areas beyond Northern  Virginia (NOVA) like Richmond and Hampton Roads for example. This is the source of the confusion for out-of-towners and new people. So to cover the bases, post on both for Tysons related matters.

That you cannot post on both boards simultaneously with the same dates. 😔

I have found that if visiting TC,its best to just post in the DC area since it is relatively close to oneanother.

Tanks so much

that's what I have been doing so far it's been working out

Only check the VA ad board to see ads for TC. I pay more attention to the DC ad board.