is in the quality of hypalon used or pvc. It can be very frustrating to try to find it out, too. The hypalon Gemini
re-tubed our dinghy
with 8 yrs. ago became porous this year. DuPont's quit making hypalon, and other places manufacture it in different thickness. This is why the Gemini dinghy
with the hull
made by Swift cost less than the Swift hypalon dinghy, which had heavier tubes, hence weighed more.
Faced by the difficulty of getting good quality hypalon here, and the ability to get European made PVC, we actually are trying out our first PVC tubes ever. The material, itself, is quite a bit thicker than the old hypalon was, as we discovered when we disinflated it for deck
stowage on passage
is 3.5 m. and the PVC tubes for it cost $2900 AUD, and are of Chinese manufacture (Hyfield). Hypalon would have been double. By that standard, the typhoon sounds pretty reasonable, but I've never seen one. Just remember, not all dinghies are created equal.
If, like the OP, I were in the US, I'd be tempted by the hypalon dinghies there. For us the PVC is really a huge digression, never owned one before, it's an experiment
, and I'm emotionally prepared for premature failure. We made "chaps" for it, to help with its perceived longevity weakness, but we'll just have to wait and see how long we get out of it.