most likely culprits:
-too much angle
-too much pressure
-rolled edge due to improper honing

the solutions to the first 2 are easy, adjust your technique. light pressure and proper angle are a balance that takes time, i am definitely still learning in this area but practice and attention to detail is the best medicine.

you can tell if you rolled the edge by checking out the sharpness tests i believe are in the Wiki. how were the shaves when you first got the razor? how is your stropping? taught strop and and light pressure with sufficient speed and control, it takes time also. do you have any hones or pasted strops?