The problem with SIP is that in terms of production it is relatively weak, which unless you are attempting a tech beeline like the CS sling is normally more of a problem than it being weaker in beakers as it cripples your expansion.
I have attached a couple of test saves for settling on the plains hill. Once you take account of the fact that you can do a 3 pop whip for a settler in the 2550BC save next turn, we are significantly ahead in terms of production compared to Dhoomstrikers save, with a larger city as well.
I'm comparing this opening to LC's, bbp's and mine. I have a few questions:
When exactly did you have the settler and the galley completed? Is it just at 2025 BC? What about the exploring work boats, did they recently get completed or did you just complete them and put them to sleep?
The reason I ask is that in bbp's save, his exploring workboats were out much sooner (or appeared to have been finished sooner) due to how far they are from the capital. It would be nice to have scouted the nearby islands to know where to send the settler. Also, his settler/galley were ready several turns earlier.
I like how in LC's save the LH and granary are already completed in the capital, but it seems very late to get a scouting work boat out.
I think that in order to compare saves, the key things to compare include:
- Date first exploring WB is completed.
- Date second exploring WB is completed.
- Date each tech is learned.
- Output and size of capital (and second city) at the end of the test.
- Infrastructure built.
- Date off continent settler/galley are ready.
- Others?
I think all of the other details (i.e. date worker is completed, date clams are netted, date city 2 is settled, etc.) will all manifest themselves in the data above.
With this information, we should be able to compare the merits and tradeoffs of each approach.
For my save:
First exploring WB finished T63.
Second exploring WB not started.
Fishing (T10) -> Mining (T20) -> BW (T39) -> Pottery (T49) -> Sailing (T63) -> Mysticism (T70).
Capital: 1 pop

mischief

, +4F (22/33 in food box), 2H, 12C, LH -> 26/90
City 2: 1 pop, +4F (31/33 in food box), 1H, 4C
Settler for off-continent city could be whipped ~T80. Galley could be done at same time.
So, the major tradeoff made in my test was science over exploration. It also has a late worker since the build queue was rax (partial) -> WB -> WB -> Settler -> WB -> Worker -> LH. The build queue in the second city was WB -> galley.
Maybe we need to run the testing a bit further to the date that you have the second city settled (we should agree on an off-continent location for the PH variants) and a third settler on a galley ready to settle city #3... It's possible that SIP + 3E will have city 3 settled earlier than PH, but I'm not certain.