Someboby on here sells stabilizer bars that are (apparently) THE thing for that.
I would've gone for them if I didn't already have my HF QH and not really need them.
Since I don't remember who it os, I can't be much more help, except to say that the way I personally would look them up is either to go to and search the advertisers section and/or search members for Mr. Koua, whose signature has the "how to search TBN" reminder link.