it has been said that downscan technology doesn't show up as clearly through hull as it does on the water. the main concern I have with through hull is potential damage to the ducer if the yak is left outside on a 100 day. the temps inside the hull could reach 130-140 and may damage the ducer. kept in an insulated shed or garage and it may not be an issue.
“For there is one God and one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all men—the testimony given in its proper time.”- 1 Timothy 2:5-6