FFF
The green card used to be 6 months currency for the experienced renter.
However, I was surprised when they would not rent me an arrow because the only thing I had flown recently was a duchess (apparently thats completely different.)
Bubble,
I think you may find the 1 hour may flex with the hours you have and the time you have gone beyond 28 days. Our school does have the concept of the circuit check which is most definately less than 1 hour.
Talk to the CFI he may have some wise words. Anyway why aren't you flying every 28 days, don't you enjoy it any more?