Traveller Rules adjustments #2: Personal Armor

Armor Nomenclature:

The armor  names in Classic Traveller are a bit misleading.   What we would call Kevlar or Modern Body Armor is called CLOTH in Traveller.   It's short for Ballistic Cloth Body Armor, but it always seems to give the impression it's normal clothes.    Furthermore, it refers to a complete body armor set, not just a vest, which is called Flak Jacket (which should more properly refer to an older, heavier sort of armor used in WWII made of nylon or canvas holding steel plates).  Powered Armor, furthermore is called BATTLE DRESS, which in actual English means the uniform soldiers use to fight in, not a metal can with motors.

For clarity's sake it might be better to rename the armors as follows:

Traveller Name             New Name Description
Jack                               Jack            Leather or synthetic jacket (fine)

Mesh                          Mesh           chain-mail type modern armor (fine)

Flak Jacket              Tactical Vest       kevlar vest

Cloth                      Tactical Armor   reinforced kevlar body suit

Combat Armor  Combat Armor  enclosed advanced armor suit, unpowered

Battle Dress     Power Armor   powered armor suit

It's a minor change, but I think that it would be make visualization easier.

However, it's also not a serious problem and maybe the rename would be more trouble that it's worth.

CALLED SHOTS
I think having a rule for using some sort of Called Shot to help defeat high armor protection might be useful.  In the rules as written, high tech armor can be pretty much invulnerable to most hand weapons.   If you look at the orginal combat system, this wasn't true, many guns could do damage to combat armor or battle dress.  However, the combat system we are using comes from a Traveller Board Game (Azhanti High Lightning) and the Traveller Miniatures game (Striker), both of which were essentially the same, and meant as a replacement for the original system.

Long Story Short:  I propose that:
If you make an aimed shot (don't move), and use a single shot (no autofire or multiple hits) you can take some sort of penalty to avoid some of the armor protection of your target.  

I'm thinking that the goal might be to cut armor protection in half.  Maybe the penalty might be -4

Example:   Frank has a rifle (PEN 3) and shoots at an enemy in Cloth Armor (AR 5), he wants to avoid the armor, so aims for the face.   At effective range he needs 8+, but has an electronic scope (+2) and Rifle Skill 3 (+3).  Normally he'd therefore need a 3+, an almost guaranteed hit with a net -2 on his damage roll.  With a -4 penalty that would be 7+, and a +1 on the damage roll