I'll get my ITR Knuckles and HFP setup together this weekend and see if everything bolts up. I recall a member on a page somewhere saying that there was a gap which would concur with you. They said they used some washers to fill the gap I think.
I've checked some part numbers and the DC5R prop valve is the same as the 03-05 EP. I have an 02 so I might have to switch out eventually. I think all the MCs are 15/16 tho.
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