Debiase, Pretty damned simple. if on the ground their is any icing, deice. If not sure of a clean wing do it again or cancel the flight.
guess what where HOT's do not cover you are a test pilot. so maybe I am just being too simple for you. BTW TC's reg's are for the most part more strict than the FAA. Polished Ice anyone, not.
A2B, I check the weather, progs, sigs, pirep, radar, etc... before I go
http://adds.aviationweather.noaa.gov...wrap_image.php
ADDS - Turbulence PIREPs for the NW region
With almost all of my flying in the airline world where cancellations mean headaches, I will say that if I am uncomfortable about the trip, I will cancel.
I guess the KISS principle doesn't apply in the UK.