Some posts ago I read someone mentioning he liked to have WS and BS not being based solely on Strength and Agility, and I also liked it in WFRP1 and WFRP2 that they were considered as separate stats, so here is a quick and simple house rule to get a similar feeling in WFRP3.
For Weapon Skill, instead of using only Strength as basic characteristic, add your Strength, your Agility and your Intelligence together, then divide by three and round the result to the closest integer: that will be your basic characteristic for Weapon Skill.
For Ballistic Skill, instead of using only Agility as basic characteristic, add your Agility, your Intelligence and your Willpower together, then divide by three and round the result to the closest integer: that will be your basic characteristic for Ballistic Skill.
An example of how it would work. Let's say Wulfric, a Reikland Human has the following characteristics:
His basic characteristic for Weapon Skill would be: (4+3+3)/3= 10/3=3.33; rounded to closest integer, 3.
His basic characteristic for Ballistic Skill would be: (3+3+5)/3= 11/3=3.67; rounded to closest integer, 4.
Other variations could include changing the stats you use to calculate the basic characteristic, or giving more weight to one stat (as an example, Strength for WS and Agility for BS could be multiplied by 2, then the division would be by 4)... anyway, the end result is very simple, as you would only need to write down the final number next to your WS and BS skills and would need to recalculate it only when you change any of the stats used for the calculation.
Any comments on this idea? Also, what do you think of having WS depend solely on Strength and BS depend solely on Agility? Do you prefer it to having them as separate stats as in WFRP2?