Question........(obviously

) I understand in the rules single stabilizer no more than 12" from blah blah blah.............I am shooting a single AEP HC legal stabilizer off the front.
Right now for my local winter league, I also have a SIMS "Stabilizer Enhancer" screwed into the rear stabilizer bushing just for some vibration reduction (heck I don't even know if it's working really), but for those not familiar with this object it is basically simply a threaded SIMS Limbsaver like those that would glue onto your limbs.
It has no weight and offers no stabilization benefit........
IBO legal or not for HC?