Your other option would be to not use your DL MM and do opposite parks -- or do your MM at DL then head to DCA when it opens after MM is done so you're even with everyone else and then do DL on non-MM days.
In August, there will already be waits on popular rides like RSR and TSMM after EMH. RSR can be handled pretty easily with a FP, but not TSMM. I'd definitely do TSMM first if you can, but I like Angrose's suggestion to check wait times with the app before you go.