best map for my hummingbird

 I have both and wouldn't go with out either. Both have a place. Sak for sure Navonics, River, Lake oahe ND and DL Lakemaster. All other lakes it is a horse race. If you have to nail it down to one, i would do the LM chip.

What's better about navonics on sak? I'm asking, not questioning.  I bought navionics for my bird but haven't used it yet.  I have lakemaster on my handheld, that's been good to me for most lakes I've used in on I guess.

I got both but perfer the lakemaster for Devils lake. Currently I run the lakemaster in the unit at the console and the navionics chip up front.

 I do what walynut does, I put my LM in the dash unit and Navonics on the bow for most lakes,, If I go to SAK, I usually troll so i switch them. I like Nav for sak better as it seems to be a little more accurate and Navonics did their own mapping where's LM copied from G&F and added their own 1 ft contour lines. Not as much information on it. LM as far as fishing out of Bismarck, it shows contour north past The mouth of the Apple Creek.

Something small, hummingbirds are tiny and can't carry much.

Yeah, I have nothing useful for this topic.

Option 1 - - buy two lakemaster chips one for Nodak and one for MN,  Use the map that is loaded for the big lake.

Option 2 --- buy 1 navonics chip for the area - screw dl and oahe

 I agree Short, screw Oahe, fishing sucks there anyways!! 

Does the Lakemaster chip actually have 1ft countours for Sak?

I've only ever used Navionics because I didn't think Lakemaster had the 1ft countours for Sak.  If they do I guess I might be in the market for another chip.  The humminbirds are supposed to have some extra features with the Lakemaster chips I think.