I recently purchased the RuggedWear F-5XB bag and I did have a lot of problems with the wax residue being left on my clothes and hands just from handling the bag. I contacted Tiffen directly and had it exchanged for a non-wax model.
Unfortunately the sand coloured one I received does not have the rustic "good-old domke" look. In fact, having been a Domke bag owner for a long time, I find the new colour quite unappealing. I don't want to sell it as I will surely lose money on the deal, so I'll try to age it by perhaps dying it myself -- apparently other owners had some luck with this.