FD, we use Lido. When I pull up the information the first page is the one telling me that they suspect all of the data in the charts is wrong / might be wrong.
With many of the things they highlight i don't see how it can be legal... When even things like the declared distances are suspected to be wrong..... Which of course bugger up any numbers the laptop spits out.
I just think if there were ever an incident you would be hung... As they inform you the charts are not correct and you used them anyway....