I call false advertising on fish finder :D ... you can barely see them ...
The charting is nice ... I’m amazed how many loops we’ve made on our lake.
I wish the “alarm” was louder.You can barely hear it. We use it for shallow alarm.
It’s probably a size issue, and has to ship “Freight”. I think UPS/FEDEX have 8’ limit and the caps probably 8’6” plus for the box. I‘d bet that’s why shipping seems so high.
Maybe just use universal type corners? https://www.pontoonspecialists.com/pontoon-exteriors/corner-caps