I think your rod is the fiber-blend Shakey head rod (2nd group from the bottom), not the bronze back. This is the 2013 catalog but I think it was introduced in 2008 (not 100% positive). If it is the same rod, here are a few old reviews. Only 1 is for the 822, (the others are for the 821), but it may give you an idea of what others thought.
Edit: I took a quick look on Tackle Tour to see if they might have an old review and they did for the SHR821. I believe this is your rod but in the Mag Light v. your Mag Medium.
http://www.tackletour.com/reviewgloomisshakey.html
Med light Shaky Head Rod
10/18/2012 10:54:40 AM http://rodsreview.com/images/5star.gif 5 out of 5 stars
Well let me start by saying it's a G-Loomis so it's going to be a great rod. I purchased the medium light model a little over a year ago. I did try several other rods in the same price range to use for shaky heading. But by far the G-Loomis is more sensitive, lighter and has enough back bone to fight 2 to 3 pound easily but 4 plus can nerve racking. I agree with the other reviewer Spots in the south (especially in the winter months in reservoirs) can be a very very light bite. With this rod in your hand you know you have the best made for what you are doing.
Hope this helps!
Reviewed by: fisherm (TN)
serious about the shaky?
10/18/2012 10:53:28 AM http://rodsreview.com/images/5star.gif 5 out of 5 stars
I started to get serious in my shakeyhead fishing, and decided to reward myself with this rod. One side not, it also doubles as a great splitshot rod, if you are into that. You should be, because it catches fish. Anyways, awesome flex at the tip, you can feel your rig at all times.
I have put well over 100 fish on this rod already and it still feels fresh and crisp as the day I took it out of the rod tube. Get one! (I own the Magnum Light)
Reviewed by: Creepy
The perfect shakey head rod! Perfect plastics rod!
10/18/2012 10:51:15 AM http://rodsreview.com/images/5star.gif 5 out of 5 stars
I've had this rod for a couple years now and it performs PERFECTLY for what it is intended. Shakey head fishing.
The action is perfect. Soft tip, for shaking in place, but plenty of backbone for setting the hook. And this is on the 821S which is the lighter rod.
Super sensitive too, with a blend of IMX/GL3 fibers. You can feel everything from changes in bottom to light bites.
Balances perfectly with a Pflueger Supreme 8030.
On top of the perfect action, and length, this rod is a very nice looking rod that feels GREAT in the hand.
And I LOVE the fact Loomis isn't just following everyone with all the new designs like split grips.
It's nice to have just a good quality rod, that performs it''s job flawlessly without all the trendy stuff going on today.
Reviewed by: LonLB (SW MI)
Perfect Rod!
10/18/2012 10:50:19 AM http://rodsreview.com/images/5star.gif 5 out of 5 stars
I have been using the 822S now for the last 6 months, this rod is an excellent choice for an avid Smallmouth angler. This is also a great multi purpose rod too. I use this rod for fishing with tubes, dropshots, soft plastic jerkbaits, and of course shakey heads. This rod is extremely light weight, sensitive beyond belief, and the extra fast tip allows for accurate casting, and positive hook sets every time! I have this paired up with a 3000 size Shimano Stradic, spooled up with 15# Power Pro. This combo can not be beat!