I am using the Mapleshade Quadrapier stands for my S100s. They are maple and have large cones to couple them to the floor, I much prefer them to the original stands, which were , in fact, made by Sound Anchor. Mapleshade also has some low stands which I intend to try but haven't yet. They also have a return policy, take a look at their website. I am using the S100s and SP1s and they are not similar in size. I assume that the SP100s are the size of the S100s There was a recent article in HI-FI News [Aug. 2002] about the resonance patterns in metal stands, even tho the ones tested weighed over 30 kg. each and were filled with sand and lead they still had resonance problems. I don't know if this is the reason that the wood sounds better but to me it does and is better looking also.
Stan
Stan