yep, found my arms generally more painful than my ribs (apart from round the side, that was awful), think different folk just feel it in different places. Sternum didn’t hurt, just buzzed right up to my chin which was wierd.
Although it really varies, I find it wierd that you can go 1cm over from an area that doesn’t hurt at all and suddenly feel it.
I was told that generally the more ticklish an area is, the more it hurts. Probably not too far off.