M'magawo ambiri ogwiritsira ntchito mafakitale, chochepetsera chokhazikika sichingakwaniritse zosowa zenizeni, zomwe zimafuna makonda osakhazikika. Non-standard custom reducer amatha kusintha bwino kuti agwirizane ndi zofunikira zapadera pakugwira ntchito, chiŵerengero ndi kuyika.