Yeah focus was not spot on. I spent some time just looking at the image and thought it was right and did a test shot but the the spikes were not as long as previously. Its ok to be picky on that shot, I knew that it was not the best. I will do another run of it another night.
Tonight I am going for either M104 again with many images near 45minutes or M83 with something similar.
Thanks for the comments though chaps, really appreciated.