The Forestry govern things in BC/Alberta and mountain time is one of their requirements. Some schools have a syllabus that gets them through the licence in shorter hours and lets them gain some longline time (Hi Rob!), so this would be one thing to ask when evaluating. I take your point about operators, but some also will let you sit as a hangar rat for years without any flying at all, and this is what the OP wants to avoid. In any busy company there are enough dead hours to give a lowtimer up to 400 hours a year in positioning, etc - I did a lot of stuff that could easily be done by one without affecting the job at all. My Northern Mountain "longline course" was "there's a helicopter, there's a longline, I'm sure you will enjoy it!" I'm hoping it's a lot different now.
The problem is that you can't tell until you get hired. You need to make yourself as employable as possible, and those little extras will help, while not being absolutely essential.
Change the word "will" to "may".