I certainly agree with that description, based on an implimetation using Salas HV AND Ale Gyrator and Coleman Regs.
So, supportive sand for current support, among other things, does not appear to strip this "behaviour".
Equally others have found that 10Y/801a and/or 71a are "better" (for more money) and a reasonable % of this "behaviour" can be achieved (for less money) with 71a, 4P1L, 2P29L, and a few others.
Next year (famous last words, may be I should say after Xmas) I hope to try some of these. Assuming of course I have a fully functioning system.

Cheers
Gn
So, supportive sand for current support, among other things, does not appear to strip this "behaviour".
Equally others have found that 10Y/801a and/or 71a are "better" (for more money) and a reasonable % of this "behaviour" can be achieved (for less money) with 71a, 4P1L, 2P29L, and a few others.
Next year (famous last words, may be I should say after Xmas) I hope to try some of these. Assuming of course I have a fully functioning system.

Cheers
Gn