Auto ISO with flash in the newer nikons; any idea?

Making a note of that Mako, for when I eventually upgrade from my D90. Most sincere thanks.

Of course this doesn't help behaviour when using the built in flash, and I'd still like an official "raise the ISO last" preference...

Actually I've worked out the only thing my D90 doesn't do that I really value is cleaner high ISO. I'm uncomfortable with anything above ISO 800 on the D90. If I could boost that comfort level to say ISO 6400, and use a trick like this to ensure ISO is the LAST thing raised, and if the D7100 has a better reputation (less flaws, perceived or actual) I may upgrade in 12 months or so. Otherwise I'm going to be shooting D90 cameras when everyone else considers them ancient history.

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Sammy.
My forum postings reflect my own opinions and not those of my employer. I'm not employed in the photo business.