I should first of all say that I have complete sympathy with the ATSA grades and the predicament facing them....I was one myself for several years albeit an ATCA then.
I am also totally in agreement with the view that one workforce/two unions reduces our strength to support any of our grades in difficult circumstances however....
...some years ago I remember joint pay negotiations with a final offer tabled by management.Rejected by ATCOs branch,accepted by ATSAS/ATEs.We later accepted a revised offer (a better one of course) and were subjected to an awful lot of recrimination from the grades who prematurely (in my view) accepted the earlier offer....
I find it a little rich to be subject to the view that I would not stand up for the ATSA grade....you have to do it yourselves with strong PCS representation...as and when PROSPECT are involved you will have my unqualified support.