I bought a 2001 Zodiac hurricane 630 with a volvo inboard diesel engine it is Ex USCG and its a 2001 boat in 2007 the USCG put on new Wing polureathane tubes. they still look new today. i sure like them and if the USCG is useing poly tubes they must be good the boat came with whatever Zodiac used in 2001 yet the CG still replaced it with WING tubes.
This boat i have and another sister boat my buddy bought from the Alaska USCG and that boat has Wing tubes as well.
We use theses boats on the west coast of vancouver island for halibate fishing so they take alot of abuse. not one patch on my tubes either. or my buddys boat, plenty of cod caught with wicked spikes to.
If you want your tubes to last no mater what they are cover your boats when your not useing them its the sun that kills em.