it does state in the rules that u may take trips under 6 months but also remain in the usa 33 months out of the entire 5 years. u cant stay over 1 year thats no exception period! however it does also state that if u stayed overseas over 6 months but less then 1 year u have to show proof. such as if ur family members live here or u pay rent or bank bills and stuff..all these r things that they say u can do and u will get ur citizenship..but u know what it all comes down to which IO u get! do u get a pissy one who snaps at every little thing or do u get a nice one who isnt about to eat u alive, depends doesnt it?
Well for all trips under the 6 months - it really doesn't depend on the IO. That part of the law is in black and white. So long as ties have been maintained.
However, you are correct that when it comes to those trips greater than 6 months but less than 1 year, the IO is given discretionary authority to approve or deny. Also the burden of proof on the applicants becomes significant - with no limits to the type of proof that can be requested from them to prove that ties have not be severed. I personally think they should make the laws easier to follow so it isn't like navigating through a maze blindfolded.