Drew, I’m no gunsmith. I just dabble.
You’re stuck on the barrels being monoblocked. Nobody is saying that the factory didn’t make changes to produce a cheaper gun. Thats painfully obvious in regards to the 201. I’m assuming the actions & parts used were left in the raw, from the Parker Repro production run. Can only assume that the barrel construction was changed for cost/production reasons, just like the finishing and sculpting of the action was. Point is, the 201 is basically the Trojan version of the Jap produced Parker Repro.
I’ve never been inside one, but looking at how the pins are set up, it’s probably safe to bet that the insides of the 201 are very very Parker like.