Actually I'm using Helix 5 Si 1Gen and Lakemaster Autochart Pro. I saw .dat files from Helix 1O MEGA and DI channel not working (or I can't use B0004 file ) with LAP. After last updade LAP have correction data mode and i'ts possible to reprocessed depth data which are not accuracy originally(on soft bottom original depth line is 2-5ft below true bottom line) My firends who used AC live and check records on LAP told me that exist some mistakes with depth (maybe problem is with transducer mount)
DI data is very usefull, bottom line is very chrisp and any manual drawing data is much easier. I'm using Reefmaster software too, manual drawing true bottom line, export this file as .csv and using in LAP
Thank You Wayne for replay about ducers ans record