The brakes are a surge hydraulic and the trailer slides forward at the coupler and a master cylinder is then activated whenever the trailer pushes on the tow vehicle since the tow vehicle is slowing down faster than the trailer when the brakes are applied. Go look at the tongue on a U-haul trailer. There is an electric solenoid in the brake line on the trailer that is activated when your backup lights go on. That lets you backup with the trailer keeping the brakes off. Backing down a ramp they wouldn't apply and usually they won't apply on a hard flat surface backing up either. At least they won't apply enough to be a problem. Without the electric solenoid the coupler mechanism has to be pinned to back up under some conditions.Hey, Sum...
I had thought about going electric. I don't really know the reason for going one way or another. I realize vehicles are hydraulic. How do you go about making a trailer hydraulic and work with the truck?.......
If you sail in the ocean where there are storms with big waves.... well, it's a good feature to have should you get pooped. However, I notice you sail on a lake.... so a bridge deck would be a pretty low priority for a trailer sailer. More better to enlarge the existing cockpit drains, or add another.I would highly recommend adding a full bridgedeck to your boat. It will help prevent water from entering the cabin, and is a relatively easy project to do on most boats.
If you sail in the ocean where there are storms with big waves.... well, it's a good feature to have should you get pooped. However, I notice you sail on a lake.... so a bridge deck would be a pretty low priority for a trailer sailer. More better to enlarge the existing cockpit drains, or add another.
I've never seen the chop on Lake Pepin get above 2'. I've been out in the worst weather our area has. No boat has ever pooped on this lake.
Rain in the summer downpours are a bigger threat to the cockpit. The drain must keep up or the accumulation will flow over the bridge deck.