Delving Deeper House Rules - Addendum

I forgot to mention a few things in my haste to post.

Armor and Dexterity

Armor modifies the chance of success of all forms of combat and most of the thiefly talents, based on its weight. Light -1, Medium -2, Heavy -3. Characters with a Dexterity of 15+ may ignore one point of the penalty. Additionally, Fighters may ignore one point when engaged in combat. Thieves may ignore one point in pursuit of thiefly activities.

Thiefly talents and the non-thief

Any class may attempt the thiefly talents, except for backstabbing, deciphering treasure maps and magic-user scrolls. The roll to succeed is still 3+, but the non-thief must roll on d4. (Note: I know this is still a 50% chance of success, on the surface. However, when you consider the non-thief classes, the fighter and cleric typically go about armored, thus they won't be able to succeed most of the time, unless the character in question has a DEX of 15+. That leaves magic-users. If you consider the manual dexterity required by their art, coupled with their implied intelligence, they should have some chance when trying their hand at illicit activities.) It is possible that failure by a non-thief is more hazardous than failure by a true thief.

Clerics

Clerics begin knowing the Sword and Shield fighting style.