Backdoor B's are out.
WS question for end of month: my NOTIONAL BACKDOOR sched has a trip in early May. If I put in a WS for a carryout trip in Apr right now, it WILL conflict with the May trip--which is good; I can select "yes even if it conflicts with next month", and I should get the Apr trip and it should auto DROP the May trip right?

Question-- since scheds haven't been loaded into DBMS as "firm", is there a risk they will re-run May after I do this and I'll just get assigned a different trip? Or are these backdoor scheds essentially done, and this move will result in me dumping first trip in May?
Thx