This is just awesome! Shall prepare for purchasing GNSS...

Matt, please excuse my effrontery but is there any intention to support loading of external IMU data for ship's angles compensation? For instance it could make possible usage of multibeam functionality of Lowrance SS 3D and/or any other equipment since XTF is going to be supported.
Thank you.

You demand a lot from software for fishing enthusiasts!
Everything you want is developed by a development team with a million dollar investment in development.
For the most part, the bulk of fishermen do not need this!
All you need is in SonarWiz software SL3 support SS3D input of IMU, RTK, Tide corrections, etc. You are engaged in professional survey, order a demo and try it!

Thanks for such an informative reply but still hope to hear from Matt.

Sonarwiz costs 8k at least and supports a bunch of very special equipment - so this not the case at all. If there could be an option to pay let's say 1k for IMU data support as an additional module - I am the first in the queue ).