Quote Originally Posted by Eddy_EK View Post
Hi Nik
In this block construction the step is not possible.
The copper base is only few tents of mm thick.

Anyway, I think if the block has good bow it does not need a step.
I understand but the apogee base is 3mm thick! And, when that is bowed and mounted it looks like a fun house mirror after! With your base being so thin, it will most certainly distort even worse... The step only needs to be .3mm deep...