Found a Trijicon TA33G-9 ACOG quite by purposeful accident whilst looking for a TA11E on 31 Dec 2011. The TA33 IS smaller and has 1/2 power less magnification than TA11, but it's eye relief is over an inch longer than the bigger scope. Plus it's lighter than the "11", which is altogether appropriate as it's intended for the Lightweight M1A rifle project.
It did have a really tall "flat top" adaptor installed, which was kinda ludicrous considering the built-in attachment's...