Firmware upgrade question for 300 series switches

Hi-
I have a customer that is investigating a strategy and solution for centralized firmware management of the 300 series switches.  They have found an issue in the lab where they were trying to roll back the firmware to a previous version  They can not roll back to the previous firmware version, which is desirable in the case of finding an issue in the new firmware that causes them to have need to rollback to a known working version.
We have read in the cisco 300 switch admin guide that there are two images (active and inactive) and that a new downloaded firmware always replaces the inactive image and is active until explicitly set.  The admin guide does not mention inability to make an older firmware image as active image when the switch has previously run on a new release firmware image.  My customer's engineers testing have informed me that an older image can not be made active after a newer image has booted.  Can you please verify if this if a fallback is supposed to work as it is causing a lot of concern-
Thanks-
Jena

Jena,
The release notes -
http://www.cisco.com/en/US/docs/switches/lan/csbms/sf30x_sg30x/release_notes/Sx200-Sx300_R1.1.2.x.pdf
What firmware is the switches currently on?
Major Changes and Defects Corrected
• Hardware version 1.0 devices that were upgraded to software version 1.1
can now be downgraded to software version 1.0. You must delete the
startup configuration file before rebooting the device to software version
1.0. Otherwise the device may have problems when booting up. You may
backup your running configuration before the reboot, and re-import the
configuration afterward. Major Changes and Defects Corrected
• Hardware version 1.0 devices that were upgraded to software version 1.1
can now be downgraded to software version 1.0. You must delete the
startup configuration file before rebooting the device to software version
1.0. Otherwise the device may have problems when booting up. You may
backup your running configuration before the reboot, and re-import the
configuration afterward.
Please read full release notes for other work arounds
Hope this helps,
Jasbryan

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