My PP still has 3 free pages right now, last year for Ext of stay based on marriage in CW they noticed this fact but did not say that for next year I would need a new passport (current one is valid until 09/28).

Any experiences with this?

As long as it's not an old US passport which the last pages are designed only for endorsements and immigrations will not stamp extensions on you should be fine.

Remember you're going to get an under consideration stamp which is the same size as an extension (about half a page) and then you'll get the extension stamp (another half a page) and if you need a reentry permit it's going to take up more room. They usually can get inside ways so it only takes half a page.

Thx so much for your input and I will risk it not to get a new one, the free pages are 3 real pages, as you stated they need 1 page for the two stamps.

Or as an alternative I might get a new one and try to get the new stamps into the new passport on the same day if this is possible, it would eliminate the need to go to CW again just for this event of passport old to new transfer... (headache already by thinking of it)...