Yes, both...sometimes.
I have found the Rat 1 to be the best overall work knife I have, its the right size, and easy to open and close with one hand, even with gloves on...for me. I really like that knife, but it lacks in the some ways...and for a long time my opinel picked up where the Rat left off. I picked up a Svord peasant to see how a traditional would work for work, and at first I felt it lacked a lot, but its starting to grow on me.
There was a time when I carried traditional only on weekends, or for recreation...after work, etc. But now I find I mix both and match most days but sometimes grab one kind over the other.
At the moment my rat 1 is my one hander, and traditional duty falls to either the opinel, my new Douk Douk, or a svord. From time to time a small SAK jumps in as well.