I see this is an old thread.
Don't know if you're looking at this anymore.
It didn't seem that anyone replying actually had one of your boats.
I do. I like it a lot.
To cut to the chase, we took it on a Grand trip in 2002. It was the handiest thing in the world for our produce. The thing was a root cellar. We put crates of potatoes, onions, tomatoes, etc. I think nine crates in all. Everything had a chance to breath. Honest to God, I think we lost like one onion or something on the whole trip. We never took the crates out until the end of the trip. We just reached (a long reach) in and got what we needed each night. In the morning, the thing took no time at all to load.
Ok, so everyone's saying "Great, you've got a produce cart; what else can it do.?"
Well, it easily outmanuevered the rafts. It punched holes great, but was a little slow to self-drain. I'd want to be careful taking it down anything where I had to hit multiple holes. When it's full, it's hard to row-kind of like a raft is most of the time.
People are concerned about the FRP lay-up. Yeah, there's a limit to what it will take. I don't know what that limit is.
I saw my partner playing pinball with it in a rock garden. I asked him later, "where were those people beating on the drums?'. There was no damage or even a mark on the boat.
I build and repair FRP boats a little bit. I built my first one in 1973. One of my little pipe dreams was to build roto-molded plastic Grand Canyon Dories. Hog Island Drift Boats here in Steamboat makes a roto-molded HDPE boat, but they're just open boats. The material may be superior to the Lavro, but for whitewater, there's really no comparison to the Lavro.
Unfortunately, I've never flipped it or seen it flipped, so I don't know how that all works. I guess, the next time the opportunity rises, I should try to flip it, to see how easily it rights. I'm thinking pretty easy.
If the kayak is a sports car, the raft is a school bus, the open canoe is a vintage car, then I guess the Lavro is an Auburn or Duesenberg. There's just no more stylish way to go down the river.
Hope this helps.