Porting Question

When I first started porting I was told to remove the kink because there was power there. I did it and never hit water. But since then I've had more heads flowed and found similar to skrews. Unless the exh valve and associated volumes are increased a bit there's no reason to touch it. Even when I use the 1.65 valves it's still visible although it's smoothed. I've seen as thin as .080" as cast with my sonic tester there and I'd imagine with core shifting some ports could be less than that.