Nice! I wish I had time to do some more work on mine.. I recently bought a house and all my time and money is being dedicated to that, while the G3 sits in the garage..
I was having a hell of a time with my decomp valve too. I had read all the posts about ditching it and plugging with a bolt. I didn't go that route, I took it out cleaned it up and bought a new cable. Seems to be working better for me now.
I had heard plugging it works but yeah can be super difficult to turn over w/o it. I remember the posts saying the proper bolt length was crucial. what size/length did you go with?