Yeah, I noticed that contradiction, too. Then after letting it stew for a bit, I think I've come to the conclusion that maybe its more a matter of being worded unfortunately rather than being contradictory. Basically, I think that the last quote was intended to set forth an exception for potions only to the rule about spending a mental stress to gain an extra use of an enchanted item. So in other words, yes, a potion can have multiple "servings", but once the potion is used up, it's done, and you can't use it again by spending mental stress.
QuoteA frequency specialization allows you one more useper session. A strength specialization increasesthe effect strength of your basic enchanted itemsby 1 (note, any increases to the basic strengthare applied before cutting it in half for an alwaysonitem). In the case of potions, this can createstronger potions, or ones that you can get twouses out of.
A frequency specialization allows you one more useper session. A strength specialization increasesthe effect strength of your basic enchanted itemsby 1 (note, any increases to the basic strengthare applied before cutting it in half for an alwaysonitem). In the case of potions, this can createstronger potions, or ones that you can get twouses out of.
A frequency specialization allows you one more useper session. A strength specialization increasesthe effect strength of your basic enchanted itemsby 1 (this strength specialization bonus can’tbe traded in for an additional per-session use).In the case of potions, this can create strongerpotions, or ones that you can get two uses outof.
(note, any increases to the basic strengthare applied before cutting it in half for an alwaysonitem)