groundfloor
The thing is jets are air cooled so you need to pump air in to cool them - a cold slow start can be very detrimental. Your temp indication might be low but as there is insufficient airflow (low comp rpm) certain components will be cooking.
Thanks for that
I was having trouble getting my head arround the suggestion of increased TIT or EGT with low RPM starts.
What I believe that you are saying is that for a nominal TIT (turbine inlet temp) the actual blade and vane temps may be much hotter due to reduced cooling air flow from the compressor.