when i went to barb training from 35-52 agility, i just brought a bunch of lobs and boots of lightness. Of course the spotted/spottier cape would help as well if you have the appropriate hunter lvl since you can run longer and you dont fall into traps as much. My recommendation is to have a games nechalace and a dueling ring so that you can tele to duel arena/castle when you do actually want to bank and quickly tele back to the agility arena afterwards. Since there are 8 charges, you will only need 1 of each. otherwise, to be honest, i dont remember banking that much times.