Gentlemen, this is not an argument in any level, this is a discussion between civilised humans, so there is no hint to begin a war. Ok?
I am not here to defend a cause, mine or someone else's, l am simply stating what l think and practice.
If one might think otherwise, fine, no worries.
To clarify the situation, l am not a defender of MMap, l am only a very satisfied user of it
as a secondary nav aid! To emphasize this statement, l repeat, as a secondary nav aid. If one decides to do away with his GPS plotter, fine, but it is not good seamanship in my opinion and l would not do it. Not in a million years. But this is my opinion.!I am a believer of simplicity and MMap provides that while Navionics didn't (for me!) satisfy my needs. Period.
What l practice and preach is the best l found amongst the plethora of apps, charts etc. and l hope l can help someone out there. No strings attached, no guilt involved.
If one is moore familiar with computers and tablets he might be better in operating them but being an older generation guy who is not very savvy with those modern gadgets, l try to keep it simple. To top it, l sail single handed most of the time and the familiarity with one system - easy to operate and clear to read - is paramount!
My primary aid is my Northstar 567 GPS chart plotter with C-Map charts.
The closest to this system is MMap. So here am l.
As far as paper charts are concerned, legally necessary or not is beside my point, could be any age. They don't have to be the latest print to satisfy the authorities, as far as l know.
To navigate along the coast of NSW l use the same charts for years, marking them lightly with 2B pencils then apply an eraser when l am done.
So there is no huge cost involved. Updating a large scale chart is not that expensive. For fine navigation in harbours and so there are the always updated CMap charts on my GPS plotter and secondarily on my tablet, MMaps.
Years ago when l sailed into Newcastle and then Sydney first time at night, l did not use anything but my plotter and paper charts. (well, Alan Lucas's book and Ron's passage planner l do not mention)