She was still pulling (slowly though) at 155 and felt solid as a rock head on tank, only reason I backed off there was several lorries miles ahead (3 lane motorway) but at that speed you get no second chance so thought better of it.
I think the weather for the day helped, it was very early morning about 3am dry but the air was damp and she felt quite 'lively'. If I top my PB I'll let you know but it's way to risky to try to often
I've hit 155mph twice now and both times wasn't bouncing off the rev limiter, she felt like she was was creeping ever so slighty faster so I guess your limited by wind resistance or 'drag limited' as it's called.
I don't intend travelling at these speeds again it was one of those what can she do moments then a I wonder if she can do it again moments