Lwerner,
"Depending how thick the Isolator is, the flip-over glass guide may not sit flat, you may have to guess a bit on how far the stylus projects. I had no problem with the required extra plate." That is exactly what I am worried about. I am told I'd need to raise the arm 5mm to compensate. I guess it's 5mm thick, and I am not sure the gauge's glass will lie flat enough.
"Depending how thick the Isolator is, the flip-over glass guide may not sit flat, you may have to guess a bit on how far the stylus projects. I had no problem with the required extra plate." That is exactly what I am worried about. I am told I'd need to raise the arm 5mm to compensate. I guess it's 5mm thick, and I am not sure the gauge's glass will lie flat enough.