New map chip for my hummingbird 788ci?

[acesario]

Best great lakes chip for my hummingbird 788ci ?
I'm looking for a more detailed set of charts for my hummingbird 788ci. Looking at Navionics and Lakemaster. I fish Lake michigan, specifically Petoskey, Fairport and Little Bay DeNoc.

According to Lakemaster support,
"Little Bay de Noc is in 3’ contours, along with the main lake. Fox River, Green Bay, and Sturgeon Bay are in 1’ contours"

I also talke to Navionics, and they said these areas vary, but are mostly 3' or better in some areas. They also said that I could use either the GOld (1XG) or hotmaps for these areas. Looking on their online map app ldbn looks pretty good, Petoskey is about the same as what I have now.

Any advice?

[acesario]

It looks like I already have the Navionics Hotmaps Premium 'north'. My chip says:

SD/PREM N5
Hotmaps Premium North v02.21

Are there any better maps available?