MNPCTech footers?

Any forum members have experience/opinions on the sound quality impact of turntable footers made by a Minnesota company called, "MNPCTech"? I saw a cursory (favorable) mention of them in an older Michael Fremer column. I'm asking because I ordered a set for my VPI HW-19 turntable (to replace the first-generation TipToes secured and further isolated with Blue Tac putty) and received them recently. They appear very well made but I haven't formed an opinion on their sonic impact as yet, mostly due to the fact that I replaced my speaker cables (Kimber) and speakers (Vandersteen 2C with Magnepan LRS) and the new equipment isn't yet broken-in. Thoughts and perspectives welcomed, please!
Keith