When playing with Pyanodons some of the research is in a bit of a strange place.
Near inserters needs just Automation (first science pack) which I think is a good place to be.
Long inserters 1 also needs only Automation, but personally I would push it back to depend on the Rubber technology (where long handed inserters are researched), and adding Py1 science packs to the cost to match.
More inserters 1 however requires Logistics science (third science pack) while depending on the Logistics 2 technology which needs Py2 science (fourth science pack). This is an extremely long wait time since the last related technology. Instead of depending on Logistics 2, I'd recommend making it depend on Fast inserters which is also a Logistics science technology.
More inserters 2 is very absurd requiring Production science (seventh science pack!) which is an obscenely long distance away! I recommend changing this to depend on only Logistics 2 or Bulk inserter or Fast inserter 2, and matching the tech cost (Py2 science).
Also the research cost should also probably be adjusted to be closer to the techs they depend on.
