Schedules
If memory serves me right, both of these tournaments are single player advances from table to semi finals. If there are quarter final rounds involved then the following is not correct, so someone in the know please post.
Sam's town schedule is posted on their website. Round one starts at 8:00pm on Friday and there are four opportunities to play Friday night at 8,9,10 and 11 pm. Each buyin or rebuy is $150. If you don't win your table Friday night play begins again at 1pm on Saturday with three more opportunites (1,2,3pm). Semifinals play at 4pm and finals is at 5pm on Saturday.
I don't have Fitz schedule, but I believe all their play is on the hour as well. Your $300 entry fee gets you two opportunities to play to win your table. Play begins Friday night and continues on into Saturday. In addition to your two opportunites for the original buyin you can rebuy twice more on Saturday if needed. The semifinals and finals are not played until Sunday morning at the Fitz.
So, theoretically you can play both and not worry about not being able to play in both of the semifinal or finals. The only trick is you have to win your table at the Fitz before 4pm on Saturday and also won a table at Sam's town as well before that time.
I am planning to give it a try as well, just haven't decided yet on where I will be when.