I recently had some issues with irritation and some rough shaving with my new razor as well. This morning, I did a single pass very gentle (and incomplete - I did the chin and under chin with DE) shave and have come to some conclusions (that may also apply to you):
1. prep was not great. I added a pre-shave oil, my face soaked it up - I had no idea it was so dry.
2. angle was terrible - as I have been advised, the spine is almost touching the face. I was nowhere near there until today.
3. stropping incorrectly. I took my time this morning, gave it 20 back/forth on pasted linen, 60 back/forth on the leather. I *really* paid attention to the feel and sound of it, and took my time. Spine and edge flat on the strop - no pressure - taught pull on the strop.

I instantly noticed a huge difference and now I realize what people mean when they say "no pulling": it's really none, zero. Good luck, and happy shaving!