RHM said:
Do any arcane or divine spellcasters need more than one exceptional ability to cast their spells? No, they don't. I know how the system is "supposed" to work. I didn't like it and I changed it. This is the house rule forum, isn't it?
Why is it you think Psions need more than one exceptional ability score? Wizards don't get every 9th level spell, so why should Psion's have access to all 9th level powers? A nomad with only exceptionally good dex will do just fine, and there are plenty of powers from his specialization. At their highest levels, Psions only know at most 5 powers per given level. They aren't going to run out of choices. And lets face it, most characters atleast have a few pretty good stats (one high level, couple of 13-15 ish ones) so they will have access to some mid level powers of other specializations.
And yes this is the house rules forum, and you can change whatever you want as you see fit for your game. But you did ask for opinions, and I'm giving you one. The reasons you state for changing the psion don't seem very credible. And your psion feels like WotC's psion except truncated into the role of a mentalist, which is fine if thats the flavor you want.
RHM said:
Metabolism? Hmmm. Sounds more like CON to me.
Anyway, what does being strong have to do with using the powers of your mind? Under the current "official" rules, a drooling hulk with 3's across the board except for his 20 in strength can "use his mind" to use an 8th-level power like hypercognition to "deduce almost anything."
Um...okay.
And just wait until your egoist reaches venerable age and suddenly has trouble using even his mid-level primary discipline powers without the help of magic or psionic ability-boosting items. More than likely, he'll be kissing any TK or psychoportative powers he has goodbye. Oh, well.
Psychometabolism was originally linked to Con before the final draft, but was moved to Str so TK could be linked to Con. For balance reasons, every category needed an attribute. And Str seems just fine for Psychometabolism. If the name is bother you so much, change it to Psychomorphism or something.
You are right, strength doesn't seem to jive with the powers of your mind, but thats only if you take the narrow view of psionics should be telekinetics and telepathy. I think of Psionics as more as the power of the human body (sorry demihumans

). Through intense focus and training with one particular aspect of your body, you can expand its boundaries of normal human limits.
I would have to agree with you on hypercognition, but one power doesn't break a whole system. If you don't like hypercog, just nix it from the psychometabolism list.
Vernable age? I don't think many players use characters who are 70+ years of age. And you might rule that such aging effects don't affect the Egoist since he in tune with his body so much. An egoist could probably find immortality through use of his powers.