UPDATE!!
Just replaced the 4 coil packs and fingers crossed the car is fixed. Just had a 15 minute drive and couldn't replicate any hesitancy at any point in the rev range and it now pulls much more freely to the red line. Also idles much more smoothly. The last time i took it out and gave it a thrash i was almost head butting the dash!
I'm very pleased and saved a nice amount by ordering from ecs above. Cost £77 for 4 delivered and took only 4 working days to arrive
Cheapest price I could get from dealers was £33 x 4 = £132
Time to get back to enjoying the car