I hope things have changed since the 2009-2010 time frame when this was a highly desired contract, but back then there was many pilots who passed the screening and medical, but were never offered a course.( Including couple of my friends).
Some had to wait 5-8 months for a course date and some never got one, just an email saying you have not been selected.
Of course times are different now and they seem to have a shortage of quality candidates, so I do not know what the current situation is.
Also in the
past during the hot summer months the office and training department do take the tie off( there will be a letter on the wall explaining this policy (Japanese only, of course)), so they can justify setting the A/C to a cool 28 C
at the offices.
Hope it works out for you, welcome.