so the same 10th lvl psion in 3e had his power pool shrink to 59 (43+1+3+5+7), and each power cost its lvl x 2 minus 1 (a 5th lvl power cost 9 psp to activate)
then ninja arrived with his “Okay dwarf, we know you hate Skippy’s little weenie game - lets try 'n fix it up for ya so you don’t have to hunt him down at GenCon again and try to bludgeon him to death with your old DMG.” ninja built a simple mathemagical formula of 3e stat bonus + XP level number and equated it to his conversion of sorcerer.
so at 1st lvl, the same 10th lvl psion got 5 PSPs (lvl 1 + wis 4). at 2nd it as 11 total PSPS, (lvl 2 + wis 4) and so on up to 95 at 10th lvl (10+9+8+7+6+5+4+3+2+1 plus wis 4 x 10). and all powers cost 2x their level to activate, just like the ninja spell system used. it was at this point that we threw away the 10:1 conversion formula for straight 1:1, tho it was likely that only Sazerslac or Turdvani really noticed…
(( nobody else was playing Powerviners or had a converter at that point, unless my sorry excuse for a RAM chip is failing me yet again ))