New Kyosho KPI hub carrier set. These come with 18* caster blocks with 7* of KPI (King Pin Inclination). We find these hubs to work excellent on buggy on all but tight/looser indoor type tracks. You will find these hubs provide less twitchyness off center and a stronger mid to exit steering feel. 
As of now, for truggy I think they could be good on large more open or high grip tracks.