on this body of water I use Lakemaster, welcome to the site. Lip Ripper has a Lakemaster review on here some place, maybe someone can find it easier than I.
I have not tried the new LakeMaster Insight in a HDS unit but the regular LM chip in my Lowrance 111 was better and more accurate IMO then the Navionics Chip. I have and run both the LM and Navionic Chips but use the LM at what ever unit I’m fishing from.
Not quite the answer you are looking for but that is my experience with them.
Here is the Lake Master Featured Lake Article I did last Spring that Chomps was talking about. CLICK HERE
I’ve had both chips and I sold my Navionics, if that tells you anything. Have not tried the new HDS or whatever it is, but I will say both LM and Navionics have some spots they’ve missed on the lake. So don’t get too mad if you’re fishing a flat and you think it should be 33′ and it’s 22′ … I’ve found a few spots like that on both of ’em.