here is the comparison to Fomapan 400 at 1600iso and Kentmere 400 at 1600iso. Each developed in 600ml 1:100 Rodinal stand developing for 2 hours. I slightly agitated (2-3 agitations) the Kentmere development after 60 minutes.
I forgot to shoot the control scene with the kentmere and also mindlessly messed up the exposures on many of the foma 400 shots, but at least we got the control pic:
Here is the reference photo using Fomapan 100 exposed for 100 iso, Rodinal 1:100 1h stand, Jupiter-8
Next Fomapan 100 pushed to 1600 iso, Two consecutive Rodinal 1:100 500ml 1h developments, Jupiter-8:
Fomapan 400 pushed to 1600 iso, Rodinal 1:100 600ml 2h stand development, Jupiter 8:

This one might be interesting. I exposed the next frame on the Foma 400 roll for 320iso to see how the stand development treats such a variation in exposure:

Here is a different shot using the kentmere. Supermarket lighting, shot at f2 and 1/30s, 1:100 600ml Rodinal 2h semi-stand:
