Well, I think that you've done rather well. I mirror nearly all that you've done. I too use JB weld to set my pillars. And my prefered bedding compound is Bedrock also. I make my custom pillars on a lathe and cut an anchoring groove in the aluminum or brass and one in the stock. I too set my pillars first and bed after they have set to the right elevation. I drill the ID of my pillars about 1/16" bigger than the action bolt. I then wrap electrical tape around the action bolts so that they fit dead center of the pillar ID and do not contact the ID. Then, I set up the pillars for glueing. Good job.