Waterbottle, you also changed to Monobloc M4 calipers, did you not?
Guzziboy66, right angle elbow Waterbottle refers to was for the CLUTCH master cylinder.
Birch, take a close look at your stock master cylinders, especially the angle of the banjo bolt.
Is it vertical or horizontal?
Is it parallel to the handlebars or the crankshaft axis?
Then look closely at your chosen radial master cylinders and compare.