Hmm without CRE I'd very rarely build the GT in iso (before the first war). It's a very big hammer investment (600h) that could be spent on units. The places where I draft the most are the cities with low food that can't really whip and therefore aren't really hurt by whip anger.
The really good thing with Nationhood is that the +2 happy from barracks allow you to draft (almost) every city twice before war -- it's a quick and cheap 10-15 Rifles in 4-5T.
Going for Rifling does indeed make the whole timing a lot easier: can whip all the ships and a few maces/muskets before Steel, then all the Cannons before Rifling and then add in Rifles. It also makes it less important to have 5XP units -- in some cases you just want to attack earlier.
However, you can't know what you'll attack with before Optics. In some games you can't even trade for PP after Steel -- makes teching Rifling extremely painful. In this case it's much better to attack with cannons a lot earlier. Therefore in every game you have that production problem.
For example in that Alex game, if I get a Guilds trade I'll have Cannons around T150-155 -- no way I'll get a RP trade this early, so I'll have to stress out production as much as possible in the newly settled cities (most likely no forges) in order to land with cannons ASAP.
For the next practice map could we get something without PHI and with less rivers? (Agg is fine, though -- I hate having to go for Archery). We haven't played Stalin yet, right?
Edit - I won't play out the Alex map, have played a few more turns and it's the easiest one this thread has seen ever since the Hannibal game. If the next game is a tough one I'll definitely play it entirely though (I don't feel mentally ready for the Kublai map lol)
Re-edit - about the map
Re-re-edit