Mucronis's page

there is not a detect alignment spell in Pathfinder, only detect Law, Chaos, Good and Evil.

If you cast Detect Good on someone under undetectable alignment You get the info that the person is NOT good. Same if you cast detect Evil, and so on.

So IF you have all 4 detect spells ready, (either prepared or you're an inquisitor) You can come to the conclusion that the person you're detecting on is EITHER True Neutral, or under an undetectable alignment spell or effect.

It's an obvious typo.

Our published version of the Mobile Fighter archetype in APG states that the Leaping Attack feature only reaplaces Weapon Training 1.

Looking at the D20PFSRD Website, it's obvious that the benefits aren't cumulative.

In addition, Reviewing the Buckler Duelist's similar Ability, it scales the same as the Mobile Fighter's ability; it's safe to assume that because they scale the same, the same level of class features should be exchanged.

On top of which, class feature chains that are replaced with the first rank means the character is unable to obtain that class feature at all; this clause from the Archetype descriptions supports this statement:

Class Archetypes wrote:

If an archetype replaces a class feature that is part of a series of improvements or additions to a base ability (such as a fighter's weapon training or a ranger's favored enemy), the next time the character would gain that ability, it counts as the lower-level ability that was replaced by the archetype.

The bolded part emphasizes that the Weapon Training would only accumulate if it was something you already had to begin with, and even if it did, it would scale to a rank you previously didn't have before that was replaced with another feature.

Also, since the Weapon Training bonuses to your attack and damage come from the same source (Class Features from archetypes of the same Core Class), they would not stack, as is appropriate with buffs and debuffs stacking. If we took 2 archetypes that had Weapon Training 1, this doesn't give you 2 ranks of Weapon Training; only one, since they are both the same thing.

the next time the character would gain that ability, it counts as the lower-level ability Wouldn't that make weapon training 2 simply act / behave / become Weapon Training 1 ?

Here is the full text for that quote.

If an archetype replaces a class feature that is part of a series of improvements or additions to a base ability (such as a fighter's weapon training or a ranger's favored enemy), the next time the character would gain that ability, it counts as the lower-level ability that was replaced by the archetype. In effect, all abilities in that series are delayed until the next time the class improves that ability. For example, if an archetype replaces a rogue's +2d6 sneak attack bonus at 3rd level, when she reaches 5th level and gains a sneak attack bonus, her sneak attack doesn't jump from +1d6 to +3d6—it improves to +2d6, just as if she had finally gained the increase at 3rd level. This adjustment continues for every level at which her sneak attack would improve, until at 19th level she has +9d6 instead of the +10d6 of a standard rogue.

Damage Reduction: How does DR interact with magical effects that deal bludgeoning, piercing, or slashing damage?

Although the Bestiary definition of Damage Reduction (page 299) says "The creature takes normal damage from energy attacks (even nonmagical ones), spells, spell-like abilities, and supernatural abilities," that's actually just referring to damage that isn't specifically called out as being of a particular type, such as fire damage or piercing damage. In other words, DR doesn't protect against "typeless damage" from magical attacks.
However, if a magical attack specifically mentions that it deals bludgeoning, piercing, or slashing damage, DR affects that damage normally, as if it were from a physical weapon. (Otherwise the magical attack might as well not have a damage type, as it would only interface with B/P/S damage in a very few corner cases, such as whether or not an ooze splits from that attack.)
For example, the ice storm spell deals 3d6 points of bludgeoning damage and 2d6 points of cold damage. If you cast ice storm at a group of zombies, the zombie's DR 5/slashing protects them against 5 points of the spell's bludgeoning damage. Their DR doesn't help them against the spell's cold damage because DR doesn't apply to energy attacks.

—Pathfinder Design Team, 03/06/13

From the FAQ.

@beej67

1: multiple charges from chill touch, as i understand it, YES, u can.
2: ANY spell cast while holding a charge wipes the charge.

Gricks epic post on touch spells and how they work.