Quote Originally Posted by BobB View Post
Most people would want to at least have 2D sonar up front. If trying to position on a drop or over a brush pile it is good to not have depth coming from a boat lenght away.

It is interesting that on BBG Marine's web page the G2 DI unit is actually less expensive than the G2 2D only unit. http://bbgmarine.com/index.php?main_...nbird+helix+10 .... although the Mega DI unit is quite a bit more. I actually didn't realize there was a mega DI unit and a non Mega DI unit in the G2N series before doing that search.
HELIX DI G2 and G2N came out the same basic time frame as HELIX MEGA units ...

HELIX MEGA DI G2N was released a little later with the Dual Spectrum Low Q DI xducer ...

Rickie