Keep in mind, too, that the parking scenario is quite different this year, so that you'll probably need to take into account where you are gonna park (whether that is the designated lot per your post-ticket-purchase selection or the place you're determined to be, regardless).
That makes a difference re going on Broken Land from 29 or staying on 29 and then reversing back south on 29 at next exit, to the South entrance turnoff.
In any case, from downtown DC: Beltway to 95N to 32 or 175 or New York Ave (or equivalent) to B/W Pkwy to 32 or 175 are toss-ups pending current conditions. Waze or WTOP can assist on the gametime decision
