Here's the picture I had made for the last thread (

) again. It shows a 10th level sorcerer and a 10th level psion and what they can do with their spells/powers in a day. The psion augments every single power to the max!
The vertical axis is spell/power level times caster/manifester level (including the spell caps) to show how effective overall one such spell/power is.
The total effect is pretty similar in one day (the picture is certainly not 100% accurate to show this, but should be close enough to demonstrate the similarity), and that is
only the case if the sorcerer is able to use all spells slots (at which point the sorcerer probably has a slight advantage on that particular day), which simply will not be the case every day. And everytime the sorcerer does not, the psions advantage improves (which is a lot more often in an average campaign, which is not completely tailored towards the need to balance psions, which should not be such a game-altering requirement to the DM, no class should work that way, that it can only be balanced, if the DM dramatically favors the other classes with the campaign style).
And that's just the spellcasting versus manifesting, which does not include the much higher number of high level powers the psion has available, the better flexibility, which is likewise not included here, the effective powers without augmentation, the lack of components, and so on. The psions advantages put that class way ahead here as there are almost no disadvantages to balance them (only really noteworthy are the smaller power base, that is there are more arcane spells available to pick from, and the weaker party buffs).
Bye
Thanee