In summer of 2018 I purchased sistrum platforms by Starsound Technologies (new name since, i think) with a 60 day MBG. I liked them generally, but thought I should make some comparisons, so I brought in GAIA footers. Frankly, I found them very very close in performance such that I didn’t feel I could pass a blind test. While comparing the two, a wise person advised me that much of the improved SQ could be attributed to the increased height. So, I compared the two commercial products to a stack of concrete pavers and sqaures of plywood that raised my speakers the same as them. Then, I decided to bring on Herbie’s Big Fat Dots—which I put on stacked concrete and wood squares to equal the height of the GAIA’s and Sistrums. The BFD’s on pavers and wood were the winner. They actually sounded better. Without revisiting my notes (yes, sadly I have notes) I seem to recall the Herbies on pavers and wood had significantly better LF quality and matched the others in every other way. BFD’s are something like $10-12 each, so under $100 all-in (I needed 8). Demo price on Sistrums were almost $800. GAIA pricing I forget, but I think around $400. BTW, I’m on a second floor, so it’s suspended with carpet and a pad. No idea if concrete floor would have yeilded different results. I’ve moved onto a far superieor DIY solution since then—that still incorporates BFD. And will recieve Nobsound springs any day now. No matter how good they sound, or don’t—I will be trying Townshend podiums next.