@StarshipCobson Ship 37 and 38 are junk so you might as well take the chance they don't blow up on ascent (if Massey's isn't going to be ready until around when block 3 is good to go)
@KenKirtland17@ScottLikedSLS There are a lot of unknown unknowns with every aspect of the mission. The nature of transfer windows means that missing one means you have 2 years of delay on solving those problems