It would be great if the MD802 had a Trigger function for DTC recording. I am sure that many of your other models have this feature.. I know that the AL519 has it and that is only $100.
Since this unit is the Elite and encompasses everything, I am disappointed that this is not yet available. Do you have plans on including such a a feature?
If you do, it most certainly should record all PID's for a given period before and after the event.