OK, currently using Topeak MTX trunk bag on a Topeak QR MTX Beam Rack with the side bits and I'm in the need of replacing the bag, but I'm wondering if it might be better swaping the QR rack for a proper pannier, so I can get something like this and get the centre of gravity lower, which I think should help with the handling, maybe? So really I'm looking for some advice is it worth getting a pannier? Will it help with a low centre of gravity? Any sugestions on whats good? Pannier would need to fit a disc frame/bike, the bag I would like one each side, one to hold the standard everyday water proofs/ repair kit etc and the other of my change of clothes and lunch (As you can tell by that it's for a commuter) One of the things I love about the QR beam is the fact if I'm using my bike to pop down the round/ to the pub I can remove it easy, and get back the sleak good looks of my bike. Is there any pannier that is easy/ quick to remove? Sorry for all the questions, but have glanced around the net and I'm getting a bit confused as to what I should do. Stick or twist!!