Isolation pucks

[alandbush]

Three are always considered better than four as it is impossible for three to rock or wobble. (It's why milking stools always have three legs).

I use Ansuz Darkz D-TC, two in the front and one in the back. As you say one in the back may cause the amp to tillt if the cables pull it down but that is no problem with my amps.
If this is the best position I dont know but my dealer recommended this placment so I went with that.

Now I am confused