
Char-Gen addict |

The talent toppling strike allows you to make a free trip attempt when you deal damage with a studied strike. Making a studied strike ends the to hit bonus of studied combat.
1) Does the trip still get the studied combat hit bonus or is it already gone?
2) If it's already gone, can I use a point of inspiration to renew the studied combat before using the free trip attempt?
3) And at which BAB do I make the trip? Full or the same used for the studied strike?
With a keen eye and calculating mind, an investigator can assess the mettle of his opponent to take advantage of gaps in talent and training. At 4th level, an investigator can use a move action to study a single enemy that he can see. Upon doing so, he adds 1/2 his investigator level as an insight bonus on melee attack rolls and as a bonus on damage rolls against the creature. This effect lasts for a number of rounds equal to his Intelligence modifier (minimum 1) or until he deals damage with a studied strike, whichever comes first. The bonus on damage rolls is precision damage, and is not multiplied on a critical hit.
An investigator can only have one target of studied combat at a time, and once a creature has become the target of an investigator's studied combat, he cannot become the target of the same investigator's studied combat again for 24 hours unless the investigator expends one use of inspiration when taking the move action to use this ability.
Studied Strike (Ex)
At 4th level, an investigator can choose to make a studied strike against the target of his studied combat as a free action, upon successfully hitting his studied target with a melee attack, to deal additional damage. The damage is 1d6 at 4th level, and increases by 1d6 for every 2 levels thereafter (to a maximum of 9d6 at 20th level). The damage of studied strike is precision damage and is not multiplied on a critical hit; creatures that are immune to sneak attacks are also immune to studied strike.
If the investigator's attack used a weapon that deals nonlethal damage (like a sap, whip, or an unarmed strike), he may choose to have the additional damage from studied strike be nonlethal damage instead of lethal damage. If the investigator chose to make an attack with a lethal weapon instead deal nonlethal damage (with the usual –4 penalty), the studied strike damage may also deal nonlethal damage.
The investigator must be able to see the target well enough to pick out a vital spot and must be able to reach such a spot. An investigator cannot use studied strike against a creature with concealment.

Meraki |

Toppling strike is a combat maneuver and not an attack roll.
Toppling Strike* (Ex): When the investigator deals damage with studied strike, he can perform a trip combat maneuver as a free action against the creature damaged by studied strike. This trip does not provoke attacks of opportunity. An investigator must be at least 9th level to select this talent.
1. So you wouldn't get your studied combat bonus to hit, because it's a combat maneuver roll, not an attack roll.
2. Since it's not an attack roll, it wouldn't help to renew your studied combat, but you wouldn't be able to do it until next round anyway. Spending an inspiration lets you study the same target again, but it still takes a move action.
3. You don't use BAB at all, just roll a CMB check to trip.
Hope that helps!

Chess Pwn |

wow, incorrect advice has been giving
No, you popped it to do the extra damage, if you can study as a swift action then you could restudy.
Yes you get the bonus to combat maneuvers if it's up because they are attack rolls, just a certain kind of attack roll.
Since it's a separate and free check you use full BAB CMB.

Char-Gen addict |

As Chess Pwn said combat maneuvers ARE attackrolls.
When you attempt to perform a combat maneuver, make an attack roll and add your CMB in place of your normal attack bonus. Add any bonuses you currently have on attack rolls due to spells, feats, and other effects. These bonuses must be applicable to the weapon or attack used to perform the maneuver. The DC of this maneuver is your target's Combat Maneuver Defense. Combat maneuvers are attack rolls, so you must roll for concealment and take any other penalties that would normally apply to an attack roll.
Thanks Chess Pwn.
That's what I assumed. I'd just hoped against all odds that the bonus would still be on for the free action.