Foghorn,
I spent my first 14 years as a technician and as such I could work on any aircraft if I did the right training. In that time I worked 1st, 2nd and 3rd line and I worked on FJ, AT and Rotary. We never stayed anywhere longer than 3 years and I served on 5 units including an over seas tour.
Then I went Aircrew. I did 3 tours on Rotary and if I had not asked to move I would still be there. I did move and have spent 14 years on type.
I appreciate others have a different experience but mine is not unique