Mon has EE at DCA so that would be your first park if you want to take advantage of EE (HIGHLY recommended!)
Tues has EE/MM at DL.
Given this I'd highly recommend getting hoppers so you can have more time at DL, especially if you have any young kids. We did 18 park days this past year w/ DD5 and spent 3/4 of our time at DL - and we LOVE DCA. There is just a whole lot more to see at DL and DCA with EE you can cover a great deal in that first hour if you get a RSR Fastpass instead of using our EE time in line. I don't see you needing an entire day for DCA even w/ the shortened September hours unless you plan to see all the DCA shows too (Disney Jr, Aladdin, Pixar Parade, Frozen Sing-along, WOC if they have it that night, etc.).
If you were doing a Tues/Wed then I agree with the posters who say do DL on day 1 and if you want to go back, upgrade to a hopper for day 2. But given you are going Mon/Tues I'd really think about getting a hopper right off the back.
Tues has EE/MM at DL.
Given this I'd highly recommend getting hoppers so you can have more time at DL, especially if you have any young kids. We did 18 park days this past year w/ DD5 and spent 3/4 of our time at DL - and we LOVE DCA. There is just a whole lot more to see at DL and DCA with EE you can cover a great deal in that first hour if you get a RSR Fastpass instead of using our EE time in line. I don't see you needing an entire day for DCA even w/ the shortened September hours unless you plan to see all the DCA shows too (Disney Jr, Aladdin, Pixar Parade, Frozen Sing-along, WOC if they have it that night, etc.).
If you were doing a Tues/Wed then I agree with the posters who say do DL on day 1 and if you want to go back, upgrade to a hopper for day 2. But given you are going Mon/Tues I'd really think about getting a hopper right off the back.