It is interesting to hear, how people are differnet interpreting the hold-over-time and weather conditions:
1. The tables of FAA, Transport Canada and Association of European Airlines (use most in the world) are absolutely identicial for these weather categories. So none of them is stupid or all of them.
2. Please be more precise: Absolutely no hold-over-time exists for moderate or heavy freezing rain. But some tiems exists for light freezing rain and freezing drizzle.
3. the given times for these weather conditions are very short. So only if you make the treatment directly at the runway with runnign engines you have a chance.
4. The whole tables are questionable, as they are based only on a few datapoints and for my opinionm not enough substantiated. But at the moment nothign better available.
5. My experience is, being of of these "idiots" involved in the development of these tables, that the most people are simply not properly trained to understand them. they are not easy to read with all the cautions and notes, but the airlines are not spending enough time.
If you want to get a punch of good information free of charge, go and register as a "Mail Recipient" with the SAE G12 Committee. Or better attend and help to improve it.
Just calling everybody else here, like some of you do, idiots, shows only that you have a problemto understand these tables and weather conditions.