Well I've just been outside as per CT's suggestion, and just tried a few shots around the garden and what not.
1/320, apertures about 5.6/6.3, and I for some reason they're not bad.
Certainly not as sharp as what has been posted recently with this lens, but I suppose thats down to subject, light, and of course, post processing.
I'll get round to posting some of mine tonight for you all to laugh at, and hopefully you can tell me why they look pants
Rather than look sharp, alot of them just look out of focus or grainy, even at ISO200, and focusing spot on.