pokemon daggerheart prep

True but he only gets Proficiency if he spends a Hope for it. @Morpekofreako is the lone player that can utilize Stress for the boost via their Adept foundation perk and at a greater effect(+4 vs. +2). Tis why for him, his Experiences actually kind of matters given the boost he can get from it.

Noted. Editing post momentarily.

Yes and no. Yes in a sense that Pick and Pull yields a D6 bonus so depending on the roll can yield +1 to as much as +6 for "free". Your Experience requires spending a Hope to utilize and grants +2. Yet no because you can stack Pick and Pull and your Experience together for a potential +8 but the odds of you needing such a bonus are slim unless the difficulty is like 25+ where having the extra boost might yield success.

Same situation with your Charming or Liar Experience when it comes to the Deft Deceiver Domain card. You have to spend Hope on both options but Deft Deceiver uses a Domain Card slot to give you advantage(D6) on actions involving deceit. Rather than utilizing a Domain card, you can instead draw upon your Experience for a solid +2. Deft Deceiver may give you a bigger boost but it's based on the roll of the dice.

They'd stack at the cost of a Hope. Ditto Liar + Deft Deceiver at the cost of two Hope.

Yes but you only gain a Hope if your Hope die is greater than Fear(or you crit with doubles). You start with 2 but if your luck rolling the die stinks well you won't be using Hope much. Bards have a gnack for generating Hope though via a class perk and the Inspirational Words Domain card(which you can use too). Other Domain cards and class abilities can generate Hope but Bards are the one that comes to mind for me given how easily they can generate it.