just too answer some questions:
Insurance wise no change as it not a performance enhancement
With regard to trophy trendlines you can see comparing the image posted of the trophy seats posted earlier that mine have larger shoulder and thigh bolsters. I have sat in both and I can only really describe sitting as mine as being more 'in' them, than on top of them (if that makes sense.) Don't get me wrong, the trendlines are still a great seat but not worth the silly money people pay from them tbh...
I cant really explain how much these seats have changed the car, out of all the things I have done to it these have been far the best money spent.
Thanks for all the great comments