Since about 2.1, BackCountry Navigator has used multiresolution views in displaying map data. 

This was something we thought might be a handy feature when navigating. When you wander off the edge of your hires data while navigating BackCountry Navigator, it will show whatever lowres data you have at that spot, instead of blank white space.   

But we don't know if they are necessarily appreciated by the customer. We do get questions, some in the discussions in the forum now, about why these low res images show up with the higher res ones. There may be other people who will just consider the application buggy and give up.

Does anyone like this? If it doesn't provide customer benefit and just looks silly, we can pull it out in our next version. 

There is a tradeoff. Without this, a downloaded map will have clean edges at all resolutions, but change in shape as you zoom in. Because of the nature of tiles, each layer will have a slightly different shape. If you zoom in from the edges of the larger tiles, you might find a white screen (instead of a blurry screen as you would with multiresolution views).

Yes.

I'm trying to make sure I understand whats happening correctly. If I download my typical 5x5 at regular resolution, then within that map, download a 1x1 at high res, there will be blurred edges around the 1x1 area ONLY if I zoom way in, or all the time ?

AND, if there is no increase in quality for topo's, why would it end up with a blurry region ?

I'm like L.P., I use these discussions for learning to better utilize BCN.

Then its possible to download areas just far enough apart to have complete coverage at 64:1 level, but then zoom down to 4:1, there could be a gap, correct ? That could appear to be a corrupted map !

I'm learning, YAY !!   

But, the good thing is....when you find one of these areas......you can mark a waypoint.....and when you get to where you can download....go ahead and get your higher res downloads.....A LOT FASTER than normal.  Because you already have the 1:64......and in a lot of cases, you'll already have some of the 1:16 data also.  Making the whole process faster.

I SAY KEEP IT, NATHAN.

Great program.....don't go backwards.....press on!
Steve

BackCountry Navigator checks the tile ID on any tiles to download and will skip downloading them if they are already in the database.

I vote for keep it.  Now that there are a few threads here for people to read and understand, I don't see it as a problem.  I think its more amusing to watch static than a blank screen!  Keep up the good work!

The versions link above will have some concise notes for each version.