I had R3R controls on my R3R,changed them to standard R3 controls. The Kuryakyn parts fit either rail as long as they are for footpegs. The foot control rails are too hihg up on the bike for my legs thats why I went with that 2 " drop down which is for the passenger pegs,its works fine on driver end too. At any rate if you like it it gves you a choice and many $ less too and they look good. BTW I used the 2" extension to get my knees down some more and you don't have to use it,it was just my choice to get my feet lower down. With just the Triumph splined adapter and the floorboard of Kurys is plenty and its adjustible too,up and down laterally as well as up and down with the splines vertically too.
Trapper,sent you two pics too,id of posted them but they both are over 1 meg in size and Ive no way to size them down. Now you do have a choice.