I recently bought a pair of Athena AS-F1 floorstanding speakers, and they came with a set of "feet" (not sure the proper terminology) that appear to be optional. Is the purpose to steady them, or to set them up higher from the carpet to improve the sound? Either way, what are the pros and cons of using them? (The speakers do sit on carpet.) And... while I'm at it, any one use the Athena SST-2234 speaker stands? My rears are Athena AS-B2s, and I need some stands. I wondered if the speakers just sit on these stands or are attached somehow. With kids running around, I want to make sure the speakers would be relatively secure... Thanks much.