When I'm taking larger cuts in a deep bore I usually bore out an inch at a time to around 0.020" under to control chips. I got lazy on aluminum and it made me regret it. Won't be my last screw up.I know chip clearance is an issue, and seeing a taper with boring bars is a thing if you stop before the job is complete, but pecking and clearing is the solution to chip packing and the taper goes away with spring passes. The radius on your insert makes a difference on finishing, and the DOC is the elephant in the room when discussing the efficacy of boring bars, am I right?
I don't regret any of my solid carbide boring bars. All are ccmt or dcmt.