Airfix 1/48 P-51D Mustang

The tail section was glued into place, filled with Mr Surfacer (1000 grade) and cleaned up using fine grade wet and dry and paper then a ladies nail buffer. It was VERY important to polish the plastic due to the natural metal finish I had planned so nail buffers are an essential piece of kit. Overall the fit wasn't THAT bad really and any gaps fell along natural panel lines which helps;

The fit of the main wings was a little tricky as the mating surfaces are very narrow. I had glued the areas inside where the upper and lower wings touch so I split them again to see if that helped with the fit (it did somewhat) but it all came together when fitting the lower cowling and wing section.
I used masking tape to hold it all together and ran a length from wingtip to wingtip to keep the dihedral and to help with the wing joints, which look very good actually and may not need filling.

What WILL need filling are the inserts on the leading edges for the machine guns as there are some considerable gaps;

Again care will be needed as the model will have a natural metal finish so any scratches will need to be buffed out otherwise they will show up massively.
After the experiences with the wing roots of the Hurricane it's nice to have a good fit of parts in this area and I have to say I'm quite impressed with this Airfix kit so far.