Use you're old card to unlock the new Navionics Update. Take the time to look the 2 videos. It's will cost you $99 for the update and you still have you're older chip: sale it or keep it
https://www.youtube.com/watch?v=FiB9TJu9T6Q
https://www.youtube.com/watch?v=1CEPmK0jmKM
https://www.youtube.com/watch?v=KC2dnRNrv8M&feature=youtu.be
It is mostly a HST-WSBL but to be sure if you look at you're transducer cable near the blue connector there is a aluminium tag and on that tag you got the exact model #. That setting is a must but there is something else: you need to get the latest update for you're HDS
http://www.lowrance.com/en-US/Software-Updates/HDS-Gen2/
I run the Lowrance 83/200 and a P66. I would say that I'm getting a crisper image with the P66. You have to order specifically for a Lowrance and it comes with the blue connector. If you go that way don'forget to change the transducer choice in the menu installation. You got 2 choices for the 66 pick the P66/5000 the 2nd choice is 10,000 and I think with thac one you are missing the surface temp.
From another website:
50/200 has cone angles 35/12 83/200 has cone angles 44/20 The 83/200 has a wider angle in both 83 and 200 then the 50/200. for shallow water (looking for fish in less then 20 meters) the 83/200 is your best choice. If looking for fish down to 30-50 meters or so, the 50/200 or an Airmar P66 would be the better option. For trolling (with or without downriggers) I would generally recommend Airmar P66 (transom mount) or Airmar B66 (trough hull). P66/B60 has the same element and provides 50/200 with cone angles 45/11.
50/200 is a Dual Frequency transducer 83/200 is a single frequency transducer but different filtering to give two cone sizes (-3dB and up to -15dB) I use an Airmar P66 for all inland (bass) and offshore use up to 300ft.
The difference of size between a 5 and a 7 is minimal; the 7 is not a real 7"
The processor on a Gen2 is much faster
The New Navionics+ comes with Sonar chart so it is 1ft contour
The HDS-5 has 480X480 pixels
The Elite: The display of the Elite 7 HDI is 800 x 480 pixels, a 15:9 aspect ratio, on a 7-inch diagonal with LED backlighting.
3D mapping with the HDS
They are both excellent units.
The Elite 7 is a 16X9 screen instead of a 4X3 for the HDS
The ELITE 7 HDI has more screen area and has higher pixel density than an HDS-7 Gen2.
The processor is a bit slower on the Elite
The signal is as strong with the Elite: he use the same Broadband signal has the HDS
The latest version V3.0 allowed the same mapping capabilities of the HDS
HDS offer more if you intend to use: radar, sonic hub etc...
Reading a 32g card is not true; it's the max. chip you can use to record. Navionics are using 2G chip
With the HDI you got the downscan; you can get it with a HDS except if you buy the LSS-2
Sold!
I'm selling my Touch12. with Lake Insight: Complete, never use 83/200 transducer and power cord. Warranty until 2/4/2015 Perfect condition, no problem whatsoever. Price: $2400 Buyer & shipper will share the shipping & insurance cost.