For me it seems that the reject rate it going up for miners which do not have that my cores.

I am currently using 2x 32 core AWS spot instances for testing throughput, an 8 core i7
and a couple of 3 core virtual machines.

The reject rate for the 32 core monsters is below 1%
Reject rate for the 8 core is below 2%

And the reject rate for the 3 core things is at about 15% !!!
(I have 11 of those, and ALL of them have high reject rates)

I think I can see some pattern in this...

Unfortunately I don't know enough of the underlying work distribution software,
but maybe I am not the only one experiencing this situation and it would be
great if there might be some fine-tuning possible?

Who has the same experience?