I remember thinking about getting a Curiyak â nice basic boat. Ended up specifying a Curiyak floor on a Yak, like it was cutting edge, but it seems 210D hull / 420D floor is the packraft norm now.
Not seen one but looked at the new Alpacka valve too (v2 now screw-in, not bayonet) but with the turn-lock mechanism it seems unnecessarily complicated, as I understand it. Easier shrink-wrapping with the old stem as you say in your other post.
These Chinese Boston knock-offs are so simple: a rubber mushroom stem valve in the upper body holds the pressure fine. Spares caps easily bought plus the retaining ring collar things (like Nalgene bottle) are so handy to screw it on quick. I suspect Alpacka turn-lock takes more pressure and more pressure is the way people are going. Packrafting Store pumped up a bunch of different brands to 7psi once without explosions. Lungs can do about 0.4psi, and I know from IKs that just 50% more makes a huge difference on a long boat.

I also found the other day that a regular piece of ½â garden hose fits snugly into the one-way port, making it less effort than the thin old Alpacka stem to inflate to max-possible pressure.
