Udey1
Prince
Udey, from reading your post I suspect this was not deity. I'm not sure how deep to go into that since this is a deity thread and I don't want to de-rail or de-value the OP's own thread.
However, I did quickly run another test this evening. I threw in a gold resource with WB. I also traded off fidelity a little bit to increase GPPs. This put us at exactly a 50/50 proposition to hit the Eng at 1600 BC.
P.S.
1600 BC = Won Mids race for us on this map.
Sorry for any sloppyness as it's from a phone but yes this was on deity and non HoF map (can post save later).I am interested in your tech path for your OMP and if you are only attempting it with certain leaders. I can PM you later if you want to not derail the thread. Guess I should post on the forums more.