The commercial boat my daughter skippers has just had the 923 xsv's removed, which had a pretty short life considering the price of them. Both had the screens delaminating and touch screen failures. These however were used on a daily basis and started to delaminating at around 3yrs old.
I have an 8412 and an 8410 which in my opinion are very overpriced when you compare to the echomap series. My 8410 screen cracked the front glass when removing the extremely tight protective screen cover and the screens aren't covered under warranty. I sanded down the 8412 cover to make it less prone to cracking another screen.
For my daughter's private rib I fitted an echomap ultra 105 which in hindsight I now wish I'd put in my own boat. Her's came bundled with a GT54UHD which picks up bottom at high speed and still shows bottom along the continental shelf in around 300m of water. In shallow water the 1200khz sidescan frequency will show clearly small fish off to the side of the boat in the shallows and the 455khz frequency shows good sidescan definition of structure and larger fish in depths of 50-60m.
On my boat I have a through hull airmar HW175, Garmin gt51 and a panoptics ps30 as I enjoy fishing and diving, so need to fish both structure and fish. But again the outfit my daughter has would have done almost as well, without glass screens and high cost.
Transducer placement is the key to high speed soundings, so don't rush into just sticking it anywhere or get someone who doesn't know what they are doing fit yours.
I use the G3 vision charts in both my units and my daughters, which can be a bit costly but in my opinion worth it. The same charts can be purchased in other formats or simply used on a phone or iPad etc, however these will be limited to phone reception.
Will you be dash you mounting or fitting using the bracket ? Both have merit, however I like the fact that using the bracket allows you to choose the angle the screen faces. Also with the echomap there's a simple clip that allows the head unit to be removed from the boat if you are ever in an area security might be an issue. If using those clip brackets, just make sure you clip back in place correctly, the clip needs to click firmly closed.
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