Hello,
I have only been with the company for a short while but i might have some info you would like.
Rostering: You get a definite roster for the the following week, and a proposed roster for the following month. And as far as my experiences go and what i`ve been told, its fairly stable.
Depending on your base the amount you work you do can vary slightly, but generally 4 days working 1 standby and 2 off.
Basing: There are 6 bases in the UK: Leeds, Edinburgh, Glasgow, Manchester, East Midlands and Aberdeen. They try and make your positioning as fair as possible, with it being on seniority.
However a group of 8 of us just recently started and most of us are where we want to be, but obviously theres an element of luck involved.
The interview, without giving too much away is very relaxed, with a mixture of personal questions, situational questions and technical questions. (So know your stuff)
I hope i have been of some help.
randomair