Star Sound Tech Sistrum Apprentice: Anyone use the 2.3" platform (SA-102-3)?

Everything I've found in reviews and forum discussions is about the 3.3" model, SA-103-3, so I'm wondering if there are any current or former 102-3 owners? I ask because with a Lampi tube dac and Supratek preamp (two pieces) the 3.3" total model leaves only an inch at most above the taller tubes to the shelf above. The 2.3" model is presented as the step up from the shortest model and also as a shelf topper, so I'm wondering what one might expect from it. Thanks,
I have been using it since shortly after it was released and it will make a CLEARLY audible difference in the sound of your DAC. The sound will snap into focus even though you probably think that is already focused.
 I highly recommend it.
I had the SP 103-3 under my Pass Labs amp and was very impressed with the results. Not only did the bass improve but the mid-range and top end was smoother with more detail. Bigger sound stage too.I have since moved on to the original Sistrum platforms and they are amazing. For the money though the Apprentice platforms offer a lot bang for the buck. Highly recommended.
I have the SP-101 platforms under my speakers, and yes, they are much more expensive, but the difference they make is literally night and day. I just upgraded them by adding his brass inverts on each of the 6 up-facing cones. Another audible improvement!
Yes, the brass inverts are now effectively a required option across their platform lines.
As an added bonus they make adjustments of the speakers on the platforms so much easier.
I can imagine, although perhaps not where moving the platform itself is required. The Gaias, which I have under my active floorstanders, would seem a little easier in that situation. But for moving components in a shelving unit when dealing with wiring and such, those little caps would seem quite helpful.