Yeah I did it last weekend and its easy enough but two of the studs came loose over the week and it was leaking.
So loosened them all today to tighten up in sequence. As I have now found out that once the gaskets been fitted, after a week of warm ups and down the gasket goes hard so if you loosen the bolts and tighten them back up with a hard gasket it doesn't seal so I need to replace it again.