I possibly fish 3 maybe 4 states a year so I run the Navtronics. 1 chip covers them all. Plus I can sit in the house on non fishing days and look over different lakes and plan future excursions. Both are good IMO.
I have used them both at home here on Mille Lacs. I find that the Lakemaster has the ability to zoom in closer. Which allows me to find those tight turns in a reef or a flat that I’m looking for! That detail will give you that edge you need on some days!!
I think if you had the opportunity to try each one of them out. You would decide on the Lakemaster chip…….