"I would like to know if Super Duper clones the hidden recovery partition in ML"
Can't speak for SD, but I believe CCC version 3.4.7 (the last "free" version) will clone the recovery partition if you set it up to do so.
However....
I would like to make the argument that if you maintain a "cloned and bootable" backup, that the whole concept of a "recovery partition" becomes superfluous.
That is to say, once you create a clone, it can do MORE for you than Apple's recovery partition could ever do.
The whole purpose of the recovery partition is to provide -some- way for users to boot, who have no other means of booting the computer in a "moment of extreme need". How much does the recovery partition actually let you DO once you're booted, in any case?
Once a user has progressed to the point where he/she has created a bootable backup clone, that user has ascended to a level of sophistication that precludes the need for the recovery partition.
On my MacBookPro, I have two partitions, one large, one small. The larger is my "regular" partition, with the system and my regular assemblage of apps, etc. The smaller has it's own OS (actually my test copy of Mountain Lion). There is no recovery partition on the MBP drive at all. If I can't boot from one OS, I just "switch boot over" to the other one. Why would I want a "recovery partition", anyway?