Basically my players were complaining that parrying was too easy and that the skill level of the person parrying should come into play. So I was thinking that Parry could become based on degrees of success. The attacker would roll and if he succeeded he would calculate the degrees of success on his roll. The defender would then have to meet or beat the same degree of success in order to Parry. i.e. Brother Lucius has a WS of 60. He rolls a 38 which is 2 degrees of success. The traitor guardsman he is fighting rolls to Parry with a WS of 35. He rolls a 15, two degrees of success matching the 2 from Brother Lucius. Therefore he successfully parries the blow because he matched the degrees of success.
Any thoughts on this system?