You might want to check your angles on the left side. You don't say whether you're right-handed or left-handed, but I noticed when I first started that I had a tendency to let the angle of the razor creep up with my non-dominant (left, for me) hand. So in those early days I had to be very aware of my angle on that side and try to keep it to 2 spine widths. Now I don't have to think about it, but getting the muscle memory takes time. And different grinds of razors can require different angles to get the best results.