Alright Chis, I'll clear some things up here because I've been noting down what values do what in-game.
First off, on large tracks like Melboune and Malaysia there is ample run-off room for the AI to move their distressed cars offtrack if they retire, so right off the bat it's going to be tough to see a safety car come out on tracks like these...just like in real life. You're going to need to see a large crash with a car stuck or sitting still on or near the AI's racing line in order for the SC to come out. These triggers are based on the values in the track files from the SC mod, as well as (somewhat) the values in the database. The SC trigger event is defined more by the track files than the values in the database it appears.
As for the DNFs, most of them will be due to either wing damage for an AI car, mech failure, or in more rare instances (more likely on tight tracks like Monaco, Singapore, and Montreal) actual crashes. You can test this by doing some flashbacks while the AI are mid-turn on a tight section of track...they'll spin out or crash and block the road
I've been using the SC mod and have yet to see the SC come out on any other tracks than the one's I've mentioned, unless I intentionally create a pile up. Just like in real life, it takes a fairly big event to bring the SC out.
If you're finding the DNF rate too high, you'll need to change the test_probability values for the mistake events in the ai_choreographer file. I recommend leaving the "problem", "failure", and "concentration" triggers as 0.01 as those have much higher effects on DNF rates than the plain "mistake" values. Each test_probability value is a percentage value in decimal. So a test_probability of 0.05 means that mistake will happen 5% of the time, per car. So be careful with these values too. I've seen some DNF-modders post their choreographer files with test_probability values of .25 even up to .4 (a 40% chance of brakes locking up? Or excessive throttle leading to a spin? Per car?...you can see how much that would effect DNF rate...)
These settings then get calculated with the values in the "Mistakes" and "Mechanical_Failures" columns in the "ai_driver" table in the database.bin file to determine the rate of mistakes and failures per driver.
So, the following are the values that I've changed and for which "ai" file:
loose_parts_settings.xml (my personal settings)
impact_player_immovable_modifier="1.0"
impact_ai_immovable_modifier="1.75"
impact_player_player_modifier="0.5"
impact_player_ai_modifier="0.5"
impact_ai_player_modifier="1.5"
impact_ai_ai_modifier="1.5"
ai_driver_config.xml = Demy's Realism Mod v3.1 with the following modified (I'm still testing with some of these values, but so far haven't seen any adverse effects while racing:
<hvOvMaxInterestingOvertakeTime float="7.0" />
à 15.0 (time AI will consider trying to overtake...sounds right to me)
<rmMaxLookAheadDistance float="50.0" />
à 100.0 (Gives AI more time to react to trouble ahead?)
<rtRetirementResetTimer float="50.0" />
à 120.0 (amount of time AI has to get back to the pits before retiring from damage that is less than ModerateDamageThreshold...I think)
<rsStallPercentage float="1.0" />
à 2.75 (% chance of a stall at race start)
<asCarInFrontYeildDistance float="2.0" />
à 1.0
<dfMinDraftSeperation float="2.0" />
à 1.0
<dfMaxDraftSpeedDifference float="10.0" />
à 13.7 (gives draft effect a higher speed boost I believe)
<rcWaitForAIWhenRecovering bool="
false" />
Then from the SC car mod I've modified these values to:
<rtModerateDamageThreshold float="0.85" />
à 2.5 (still testing this)
<scTargetSeparationTime float="0.2" />
<scInLapLeadSeparationTime float="0.5" />
à 0.2
<scInLapLeaderSpeed float="33.0" />
<scBrakingPerformance float="0.8" />
<scCorneringPerformance float="0.85" />
<scMaxThrottle float="0.50" />
<scMaxSpeedThroughIncidentZone float="30.0" />
ai_handling_config.xml = Demy's Realism Mod v3.1 with the following modified:
<drsSpeedBoost float="1.1" />
à 1.05 (Lessens AI (and player?) DRS effect as far as I know)
ai_choreographer.xml = Demy's Realism Mod v3.1 with the following modified:
Mistake Brake Early Car Behind = 0.01
Mistake Brake Lock Car Behind = 0.06
Mistake Excessive Throttle Car Behind = 0.065
Mistake Brake Early Car Ahead = 0.04
Mistake Brake Late Car Ahead = 0.04
Mistake Brake Lock Car Ahead = 0.06
Mistake Excessive Throttle Car Ahead = 0.03
Mistake Brake Early Concentration = 0.01
Mistake Brake Late Concentration = 0.01
Mistake Brake Lock Concentration = 0.01
Mistake Excessive Throttle Concentration = 0.01
Brake Problem Trigger = 0.01
Engine Problem Trigger = 0.01
Brake Failure Trigger = 0.01
Engine Failure Trigger = 0.01
Tyre Failure Trigger = 0.01
Hope this helps you fix the issues you're having
