I still have this bag.
My only issue is when I use my Quad shocks with it , the metal of the carabineers /Bag hooks .........Squeak badly with the metal D rings on the bag.
This may sound crazy, but you could always use cooking wax (paraffin) on the metal. It'll minimize the resistance between the 2. You could also use some sort of oil/grease, but that'd be hell if it got on your discs. I did this on my 'beaners for when I used it with my night bag (also a gateway) and it silenced the issues I had. The only problem with wax is, if you carry a heavy bag, it wears through it every couple rounds.
Another idea would be to replace hte carabeaners with zip ties.