I've got a blown head gasket on my 996 and the cylinder head has some corrosion. I've read some posts on hear about similar issues - has anyone had the head skimmed and re-timed? There doesn't appear to be much space for skimming before the valve seats are reached. I've heard this mostly affects the vertical cylinder - the horizontal cylinder looks ok when I've looked down the intake manifold (looks dry anyway!). Bike has only done 3,200 miles. Could anyone recommend a mechanic who can do this sort of work in the North West please?