Hugo, that is where the rear bake is so important. I have green linings (AM4) on the back of my Rapide, they are most useful on hills!! as well as hairpins and stop/start traffic. I do tend to use my rear brakes a lot on all my bikes when doing manoeuvring and negotiating tight bends; in fact I wore out the rear pads on my last BMW before the fronts. I never needed to use the fronts HARD because I anticipated the road/traffic but on the passes and twisty roads it was all gears and rear brake to free up the steering. With my "new" shadow it will be extra important as it has electric start. Maybe the 8" should have shrunken cast iron liners inside alloy just like Series A TT brakes.For us sidecarists the 8 inch brake may be an improvement. We would all like a better front brake. Twin leading shoes are out as they do not work well in reverse and will not hold the weight of an outfit on a steep hill. I admit I have not tried either as the price of both precludes it and currently I have to make do with just alloy type brake plates. Perhaps Sidecar Grandpa Dave Johnson may have some knowledge of the 8 inch brakes in use on sidecar outfits. Hugo.