Yes, I beleive the class rules for T allow down to 2.25 kg for the pole & snuffer setup...My original Guck Snuuffer (all carbon scoop on a Hall Spars 2.25" carbon pole with mylar bag) came in just a little over this. So a full carbon snuffer must be a fair bit over the limit. Not surprising that they are a bit fragile with the builders trying to remove as much weight as possible.

They do bring a better windage profile than a floppy bag to the table...but perhaps this is less significant in lighter airs.