once the R32 SMS is done, 207th isnt going to need all 222 R32s anymore, they only need a maximum of 180-190 cars since the C requires 144 R32s,and if on the A the same amount for the summer, leaving 30-40 R32s free, if the TA wants to, those 48 oddball R42s can retire at anytime, its all about cutting costs and having one 60 foot SMEE car class instead of 2, the R42s arent being maintained as much, if they were to stay they would need work,simple as that, all of the R32s should be done with SMS by march