Thanks for a great reply, yeah, the CFS wasn't to clear about double factoring. Would have thought that discing would have made a bigger difference between the 2 charts.
OK, So you multiply the length of the runway landing distance by 0.7 for 704 ops and the required distance has to be under that according to the CARS, but is the CRFI legally binding?
If a RFI of 0.3 is reported and I work out that according to the x-wind graph I need 0.42, and I end up off the edge of the runway in a big bent beer can, will TC say “You broke the law, we are going to send you 30 letters over this one” and what about the insurance scabs. Is it law or just Advisory?
So you don't use it in a practical flight plan regarding alt airports? re 25kts TAF x-wind on slushy white stuff?
This and " Verify runway unobstructed when A/G advisory not available" on the approach plates just has the smell insurance companies and TC arse covering here. just my 2 cents worth.