Anyone else had problems with their nav data supplier? Its very worrying if you can't trust your charts.
I would think experimenting outside of Jeppesen/LIDO zone is a very brave (but not neccesarily smart) move. I've seen Navtech charts and I sympathize with everybody that has to use them every day.
Now of course everybody makes mistakes, but the idea of using Jeppesen or LIDO is that they hold a majority share of the market, so they have enormous amount of customers - and the possibility of somebody noticing a mistake is much more likely than with a provider that holds 5-10% of the market. In my experience dealing with both Jeppesen and Navtech, Jeppesen takes fixing the problems much more seriously and expeditiously.