Thank you for the responses HS Ace and Kenny! After those explanations it looks like the 2011 Rhythm has been taken off my list. I like that the new stuff insulates better than 1/2lb foam, like that it doesn’t absorb water, and especially like that it is much easier to work with instead of foam in terms of servicing the tub.
So my dealer supposedly has a 2012 Relay, but how would I go about verifying this and making sure it has the new insulation? He says it’s a 2012 and then pointed out that it had all vertical wood panels, while the 2011 Rhythm had vertical and horizontal wood panels. Is that enough to know that it’s a 2012 Relay that definitely has the new insulation?
Thanks again for the responses
(PS: If a moderator is looking at this, it took a while for me to login to this site to reply. I removed the word beta from the url and it finally allowed me to properly login and make a post. That beta word was popping up in the default links but I manually deleted it in the address bar to fix the issue.)