I haven't checked the specific tables for LBZ/LMM but:
Basically, the DSP5 child tunes contain just the tables required to control fueling, pressure, timing, and boost. Your "main" tune needs to have the limit tables and DTC functions in place to support those tunes. This is why your "race" tune is the main tune.
Different year and O/S have different DSP5 tables, so you need to look for supported tables.
There are scripts for populating the DSP5 child tables, but ALWAYS check them out. They are supplied free of charge with EFILive, but sometimes they do not work exactly correct.