Here's the relevant producers letter.
http://everquest.allakhazam.com/edit...rs_letter.html
Experience Penalties - Implementation
Though people often refer to the class-based penalties as the "Hybrid Penalty", most classes have a penalty. Hybrids just have the largest. A hybrid requires 40% more experience to level than standard, Monks require 20% more, and Intelligence casters require 10% additional experience.
Unfortunately, we cannot change the experience tables themselves without running each character (which number in the tens of millions) through an "Experience Converter" without existing players changing levels spontaneously. While some might argue that we should grant free levels to everyone with a penalty, that would not be in the best interest of gameplay. After all, who would want a paladin with level 40 skills (skills in the player-sense, rather than the character-sense) in your level 60 group tomorrow? Everyone earns his or her experience under the rules that exist at the time.
This means that we must address the penalty differently: basically, for every kill, after all grouping bonuses and zone bonuses are applied, the experience will be split up according to level, rather than experience. For those classes that do not have a penalty, they will then be given that share. Those classes that have a penalty will get their share, multiplied by their experience penalty. Essentially we are creating extra experience to give to those with a penalty after everyone else has gotten their share.
Since penalties are always a value over "1", this results in the creation of additional experience. And, since shares are determined by level rather than total experience as before, a character will get just as much experience for a kill based upon the size and level of the group, regardless of the class makeup. Finally, everyone in the group gains experience at a faster rate because we're creating the additional experience for those with penalties out of thin air, rather than taking it from other members of the group. That means that after implementation, those without penalties will get more experience for every kill than they would have if they ever grouped with a class with a penalty.
Now you'll notice that we are dividing up experience based upon the LEVEL makeup of the group. For instance, if a level 20 and a level 21 group together, the level 21 will get more experience per kill. That is however only fair since the level 21 does actually contribute more value to the group.
There is a problem, however, with this 'new' formula. Death penalties are currently based off of the level before your current one. Secondly, everyone suffers the same numeric experience loss on death as anyone else of their race, regardless of class or class-based experience penalties. What this means is: if I am a cleric, and you are an SK of the same level and race, we both die and lose the same numeric value of experience (Example: 100,000 experience points). When we go back to recover from death, you as the SK will get your 100,000 points back faster than I will as a cleric, since all of the experience you get is multiplied by your class-penalty (1.4). Essentially, I lose and gain experience at 1.0, but you lose at 1.0, and gain at 1.4.
This is a balance issue we decided was also necessary to address. If we are going to make the statement that class experience penalties should not exist, we then have to do it on both ends (with exception to the two classes that we've decided to leave as-is). As such, rather than losing the same numeric value, loss on death will ALSO be multiplied by the experience penalty. Since everyone currently loses experience as if they are a warrior of their own race, we do not want anyone to lose more relative experience (e.g. experience such that recovery from death is more difficult). Hence, we further multiply the experience loss on death by the class experience modifier for warriors (0.9).
In our example above, my cleric would lose 90,000 XP on death at my level (Same as before since clerics do not have an XP penalty), but your SK will lose 126,000 XP (Same as before, plus something to offset the experience gain bonus). Death is, however, still easier to recover from for both classes since we create experience out of thin air for every kill.
We felt that it was important to announce this as well since those with penalties will see a larger portion of their "bubble" lost upon a death, but will now recover that experience much faster. It's VERY important to understand this. Again, if you play a class that gets a bonus now when you make a kill, you will also lose more due to death. Please remember this when, after your first death post-patch, you see a greater experience loss on your screen: you are ALSO gaining more experience for each kill.
^ those fuckers were bath at math.