Does a tournament win at an earlier con give me a free pass into the final or semi-final round at Dexcon?
The answer is relative. It's also subject to change.
But currently, the answer is: DENCC Regional Champions get a bye into the SEMI-Finals of the National Championship at DexCon, bypassing at least one round of play there. And consistent with granting at least a one-round bye to a Regional Champion, if a DENCC National Championship is ONLY TWO ROUNDS AT DEXCON, then the Regional Champion byes the first round, and plays the final.
DENCC Regional Champions are also awarded complimentary non-transferrable Complete Memberships to DexCon.