Great shots Terry! really lovely! Plus you made a lot out of m43!!!!
Having said that - for sure everyone has his/her own preferences - after shooting m43 myself and after reading all your feedback and findings, end of the day I would go for a FF DSLR when going on Safari.
Reasons are simple - because I would want shallower DOF and the advantages of higher ISO in combination with those larger sensors.
PLUS - and I come more and more to this conclusion again, I simply prefer OVF versus EVF. But as m43 considers to be so great because of offering either LCD composition or EVF composition, this is actually the biggest restriction for me if I want to do serious photography, I have done lot of game drives in Africa most times with APSC sized sensors from D1, D200, Eos 60D etc. with great results in combination with 70-200/2.8 and 100-400, but I would really go for FF if I have the possibility to go on Safari again.
Many thanks for all your feedback here and all your open mind - really enjoyed that!
Best
Peter