eh.. the reason I know of Shriv etc and that I think the TA bit sounds a bit worrying is that I have done the Reg course (the 16 month one ) and don't want to even start to think what subjects might be missed out on the TA course - other than none of the academic background training done at RMCS!
The role changed after Options For Change in 2000. We no longer have to deal with IED's. Part of the job is ammo maintenace, insepction & repair from cradle to the grave. We also do disposal by Dems and CMD/EOD tasks.
We have a pretty good cross section of skills, with Ex reg AT/ATO's, as well as people in the private expl industry, MOD and Shriv.