Hmm...they'd be a little too easy to perform then, don't you think? It takes skill and precision to perform a BR and nail a smooth landing...to attempt one is always a risk and strategic choice for several reason. Is it worth it to attempt one here and risk grinding the wall around the upcoming hairpin? Do I even have a reasonable amount of energy left to perform one? Or do I have enough of a lead that I can do without? Yes, they can be a challenge , but isn't that the point? Y'know, it's the whole risk/reward thing. If you could map BRs to the L1 button, everyone and their mother would be executing them perfectly at every opportunity, with the only consideration being energy. IMO, that would take a lot of the strategy, skill and fun out of this game. Again, just my opinion.