Nice work !
From which MFMP test did you use the Ravi data ?
The 700 Watt or 900 Watt run ?
The minimum temperature set for the color display was somewhat high in the MFMP Ravi file and as such the cap temperatures where a flat profile showing the minimum set temperature.
Don't know if that can be adjusted afterwards so that the real temperatures show up.
As I stated in an earlier post the cooler cap temperatures for the MFMP run can possibly be explained by the Lugano device having its heater coil windings continue under the end caps.
Since most issues for a calculation are now known, I could in the future do two FEM simulations. One without the heater coil extending under the end caps and one with extended heater coils.
Maybe from the resultsing temperature profiles we can then determine what is the most likely case.
Concerning the gaps, it does depends on what emissivity was set for the background ?