As BOTLFEDLT1 said, the Urethane mounts won't make any difference in ride stiffness. I just want them because the stock rubber 1's are inadequate and are done every 8-10 months.
For your question BOTLFEDLT1, I have no idea why they keep deteriorating so quickly, but it is annoying. I even tried a fix for it that I found on the net
Like I said Honda knows about it
The bushings just have too much play, I thought this would help and it did a lil bit but it only prolonged what I knew was gonna happen
I'll take a pic with my cam phone and show you what's going on.