At the bow I’m looking to add a helix 12 with mega 360 to my current helix 10. I don’t really struggle to see the helix 10 but I really am not staring at it all that much. I’m wondering if you think there’s much value into a telescoping mount for both graphs? Maybe it’s split where the one stays low but that may be weird. I’ll be planning to utilize my 360 a lot and wondering what your opinions are 

I can’t tell you if you need a telescoping mount. But if your planning on purchasing a new graph just for 360 why not just get a Helix 15. I’m putting a Mega 360 on my boat this winter and plan on using my Helix 10 if I find it to small I’ll be adding a Helix 15.