Taxiing checklist "L.H. brakes" check

[xpst]

Hi,

Looking through the TBM900 checklists, I notice this "L.H. brakes" check. I wonder why it is left-hand brake instead of right-hand, or not both ?

Also, I think the Hot Start supplied checklist is missing a "Pilot OXYGEN switch ... ON" check. Given that there was a real TBM loss, probably caused by an OFF state, I've added it to my checklist !