Hello all, snapped up a Superlight M6L. How should I proceed with choosing a rear rack? I would also like to install the wheel extenders to make rolling more stable,

1) Aluminum vs titanium. What's the advantage of titanium here, since aluminum is lighter and only 10kg at the very most would ever be loaded? I'm aware of the various H&H / Ti Parts etc etc options.

2) Rather than go thirdparty, is it better to simply buy the official Brompton rear rack kit, which comes with the 'R' mudguards? This design is better braced against sideways movement than the unofficial racks (?)

If I can save a little weight and money by buying a rack from Taiwan/China, I'm happy to do that