Disney announced the official opening date for the Seven Dwarfs Mine Train – it’s May 28th and FP+ is available from that date forward. I recommend using a FP+ around noon with the potential that you could also start your morning there to enjoy a short standby wait. While FP+ for the Mine Train will be a hot commodity, there should be far more of them than for Anna/Elsa, which are virtually impossible to obtain. As always, book early. Book often.