Yes you are mistaking :
Mt09 , mt 09sp ,tracer900 , mt 10 ,mt10 sp , R1 , R1S , R1m got all the same calipers fusion shape ; from ADvics/sumitomo .
For the r1/r1s change the materials of the pistons (ally instead of stainless) and the design of the screwed covers ,
for mt10 sp the design of the screwed covers
for r1m ally pistons , screwed covers and nickel finish instead of black.
You will need to use 12,5 mm spacers even with 4 pot calipers from early R1 or R6 BTW. ;).
Sure also 10 or 11 mm spacers can be used , but in that way the full and bigger rotors area will be not used .