Now I'm doing one build as per the instructions and the other 'out on my own' ..guess which method has the least gaps and is proving the 'easiest' -relatively speaking - to work on? Above, kit 1 - fit the fuselage parts together as two halves and then join. Much better result than kit 2 , images below. To follow the instructions on the Airfix new-tool Blenheims is to invite disaster! Below, kit 2 - lots of filling and sanding..
The finished model can be seen on this blog here