I have personally never tried it. Since CSC is cheaper (scratch that, less money) than Extra, I never saw the reason to try it.

One of the guys here, who does a lot of side work on inflatables, said he tried micron Extra once at a customer's request and it ended up cracking on the tube later in the season.
I tried calling my Interlux tech guy at AkzoNobel to see if there was a reason it could not be used on an inflatable, but his mailbox was full (man, I hate that).

S-