Quick sandboxing update for Harry. I tested your openings (especially the T36 settler plan) 
and managed to pimp them up a bit.. 
First of all, your spreadsheets make me crazy!
I again found a 2/2 plains forest and some other oddities, but the good news is, you actually finish the settler EOT35 instead of EOT36 with your plan.. 
I spent some time testing and can say now with certainty, that instead of working PH forest during the turns 15+ we should definitely be growing with max speed. In that way we finish the 1st work boat 1 turn later, but get to build settler at size 3 working 3 improved tiles. That approach also gets the settler EOT35, but simply comes ahead in the terms of food and hammers
I have now no time to write the whole micro (and it's still work in progress), but here are the main points so that you can try:
What I'm worried with this opening is that we are only fielding 1 worker and that will cause trouble (having work boats and thus improved fish kind of compensates though). This stuff has to really get compared with openings that delay the settler, but get the 2nd worker faster out. The possible benefits of the 2nd worker will really come visible somewhere between T40-T50 so that gets slightly more complex.
Sleeeep...
and managed to pimp them up a bit.. First of all, your spreadsheets make me crazy!
I again found a 2/2 plains forest and some other oddities, but the good news is, you actually finish the settler EOT35 instead of EOT36 with your plan.. I spent some time testing and can say now with certainty, that instead of working PH forest during the turns 15+ we should definitely be growing with max speed. In that way we finish the 1st work boat 1 turn later, but get to build settler at size 3 working 3 improved tiles. That approach also gets the settler EOT35, but simply comes ahead in the terms of food and hammers
I have now no time to write the whole micro (and it's still work in progress), but here are the main points so that you can try:
What I'm worried with this opening is that we are only fielding 1 worker and that will cause trouble (having work boats and thus improved fish kind of compensates though). This stuff has to really get compared with openings that delay the settler, but get the 2nd worker faster out. The possible benefits of the 2nd worker will really come visible somewhere between T40-T50 so that gets slightly more complex.
Sleeeep...