@AmigaMance
Do you think that it's a good idea to put a small amount of thermal paste in each of the controller chips of the BPPC?
Err? What would that accomplish exactly?
Thermal paste has one function: Remove the air between the chip and the heat sink to ensure good thermal conductivity (naturally the paste itself has good thermal conductivity aswell). Applying termal paste alone it does nothing useful. Common mistake is to overdo the thermal paste, you only need little drop of it (so it forms a thin layer between the surfaces).