Anyone have experience with Soundsmith’s strain gauge?


After watching Peter Ledermann’s excellent presentation on phono cartridge design I am now quite interested in his Strain gauge cartridge. Unfortunately reviews for the product seem to be sparse and are from nearly a decade ago. I’m wondering if anyone here is an owner of such a system and if they’d be so kind as to share their experience with it. I currently have the Aida cartridge from their high output MI lineup and I want to know if the sound really is a big step up from what I currently have. 
thermionicvinyl
And don't forget the reduced costs of l/t ownership.
So, buy a Top Wing Red Sparrow cart for $15k.
Retips every 2-3 yrs c. $10-12k
SG? $9k minus trade in for phono (that can be spent on LPS).
Retips c $1k each.
The numbers don't lie Lol.
This is from another thread here, submitted by Mr. Lederman himself...

"We are building to order, so there will be delays, but the above comment is correct ~ it is a great moment to buy a Soundsmith design. Our 6 top designs are discounted 25%; LOW OUTPUT - Hyperion, Sussurro, Paua, Zephyr MIMC Star, HIGH OUTPUT The Voice, and Aida."