LAMBTS. Consult the s4wiki.
So if I'm getting this, they are using LAMBTS to supply additional fuel if the egts go above a curtain temp as opposed to the stage1 tuning guide which recommends using LAMFA and driver requested torque to apply a driver requested A/F ratio.
Leads me to believe I should set lamfa for the majority of the fuel management. Set up LAMBTS for high egt enrichment and setup KFLAMKR for fueling under knock conditions here. Let me know if I'm on the right track.
Also can you pull down my bin for now. I want to spend some more time in the fueling tables and couldn't figure out how to delete the attachment