I was trying to model a simple handle when I came across some weird behaviour using surface extrude with 2 curves. I am using a 1 degree curve made with the EP curve tool and I snap to the Maya grid. Whenever the control vertices are snapped to the grid, the final tube is not uniform, there is some weird skewing going on, see also the video below. When I move the control vertices just a tiny bit to the left of the right, it seems to produce a correct uniform tube but when I snap it back to the grid, it looks weird again.
Am I doing something wrong or is this standard behaviour? I specifically want to use extrude using 2 curves, I don't want to use face extrude along curve because I'm using a plug-in that does not work well with face extrude along a curve.
https://youtu.be/aAzsRp-iWYg