We have the Upside Up Master from Ocean Data Systems. It's pneumatic and blows a shackle on the house connector for the mainsheet when a parameter is met. We do not have any cleats. We have two dump buttons, one on the inside helm and one on the outside helm station.Have you tested the upside up system?
Which system do you have?
Electric release or air?
One cleat or 2?
Do you think it will make the boat much safer?
I have been thinking about it for a while but have not actually got around to buying a system.
I think it makes the boat safer in a couple of ways. On our 57 we kept the main on the winch in the tailer with the clutch open. To dump the main quickly you had to be ready to get outside. Not optimal. I think having the ability to quickly dump the main is a huge upgrade.
We have had the system blow one time when we were surfing some waves inbound to Hatteras. The swell had picked up to 8-10 feet and we were running off the wind. Whenever we got a chance to really surf we did so, it was actually a magical few hours sailing. My son was on the helm and we had the preventer pulled in pretty tight to keep the main way out and not bouncing. Got on a really nice roller, pointed it down the line and we heard the system compressor running. Realized we had activated the system. Franklygiven the sea state and acceleration the system activated well IMHO.
I'm a fan of them, but they have to be setup and monitored, like anything else. On our boat the scary angles are in the 50-70 apparent with the wind picking up.