I have an older model Echo Map 73sv non CHIRP think 2014-2015 that the previous owner installed on the Stratos I bought and it still has software version 2.70 if I'm not mistaken. I also bought the LakeVu HD SD card from the previous boat owner for 75 bucks which is also from 2015, fortunately for me he never used the 1 free map update you get for purchasing the lake card... So i did yesterday. Seems also he never registered the 73sv either on Garmin Express... So i did. I had a spare SD card laying around and loaded the latest software version 4.10 2017.6.12 on to it so to update the unit. So my question: Is there gonna be any conflict with using the updated LakeVu card in the unit after it's been updated to version 4.10? I think I read on here that you have to leave the sd card in because of the unit being an older model, what will happen if I install the updated LakeVu card instead and leave that in after the unit has been updated to the latest software version?

And another question: Will this unit be able to do Quickdraw?