i use the motowheels clip ons.  it came with risers but i use it without the riser.  fits great and feels comfortable. but i'm coming from an r6 to monster so the forward lean feels more natural.

the only negative is that once you install everything, its very difficult to adjust the motowheels clip ons due to the location of the bolts being blocked by the coffin brake reservoir.  might be different if you have the 900 with the remote reservoirs. 

this is on a 2000 monster 750