I have the Kuryakyn Fork Brace on my 05 FXDWG, does not touch / scratch the fender, looks cool, and it does take a little of the "flex / twist" out of the front end. Should be a requirement on a FXDWG in my opinion.
The Fork Brace combined with 1" rear lowering shocks and heavy fork oil really made a significant difference, I mean a real difference.
I installed the SE fork brace on my '05 wg, without changing the springs out to 80/120's or more and heavier oil you're not going to get the full effect. a nice tight non-flexing front end is well worth the $300 cdn it cost.