I use the HD Deuce risers as well (Interstate).
Two easy modifications were necessary:
1) Drill out the mounting holes to 1/2"; this requires very little drilling. Stock risers still work after drilling.
2) Reroute cables to the inside of the tree.
Both mods are pretty simple (after all, if a girl can do it....

)
You might have had to get longer bolts... can't quite remember (it's been awhile).
I used the LaMonster risers before switching to deuce, they work fine, but the deuce have quite a bit more rise and pullback.