That's awesome! I'm going to try that on some of my scrap bin parts and so how it goes. I've already got everything on hand except for the denatured alcohol. I'll have to pick some up on my next run to town. All of what we have now is "good natured alcohol".
Not strictly correct.
It is indeed the impulse jewel that knocks the pallet out of lock, however once the escape wheel tooth is sliding down the impulse face of the pallet stone it is the pallet that is accelerating the impulse jewel. So both pallet and impulse jewel take it in turns to make each other move.
Hmm so OP probably put the new spring fairly close to where the old one was, but the roller is still out of place. When the balance is at rest, with the fork engaged with the roller, fork between the bankings, the balance arms should be perpendicular to a line drawn from escape jewel to balance jewel. They should really realign the roller, then get the hairspring oriented correctly.
Right. But looking at the mov't picture from Ranfft's, the pallet sits inline with the cock screw and the balance. And in the OP picture the impulse jewel is inline with the same said reference points. That should make so that the jewel is in the proper position are when the balance in installed, and the watch should at least run anyway.