Average party level is bad standard
"I don't think it's a problem in the system so much as an excessively literal interpretation of the letter of the law, rather than the spirit."
It's an extreme, but completely correct, example to point out a 10th level would get less experience than the same 10th who had a 1st to assist him. The system say "average level of the party", period. It does not say "average, not counting..." or any other sort of judgement. Just flat average. The system is simply wrong. When you have a party that is not too far from the base 4 PC, it works with minor clink's. When you have a large or small party, the system becomes nonsense.
In my own case, I was one of a large batch of wimps attached to 4 of about 10th level, who took on a stud of about 13. We wimps pulled party average down to about 4 even tho we really did little but stand there as the studs beat him bown quickly. But going by the charts, we all gained a level or 2. Going by the total levels attacking, we should have gained a few hundred XP each, which would have been a proper award for the danger we faced and contribution we actually made.
Measuring by total party level is a much better system.
To use a more reasonable example, we have a party of 3 6th levels, an average party level of 6 of course. so they