Shoddy method

The wheel alignment datum on BC7 SUBARU Legacy LSi were captured based on my own prejudice and dogma especially on the negative camber values in every wheel, 30 minutes for frontal alignment and 60 minutes for hinter one. It would be used only for break-in period of time and further precise adjustment would be performed in mind the most preferable alignment condition. Though some shoddy method of frontal and rear tire surface see through way was invited last night, straightness and steering centric lump feeling are firmly established surprisingly, such a shoddy way might be available on earth or it's better than the conventional way that I have been performing utilizing some special tools, a pendulum device with 1719,75mm radius(for vertical inclination) and a level equipped with LASER pointer(for horizontal inclination). Rough and stupid way like that is possible on earth?, in a Scientific field?, by only eye?, I don't recommend this sloppy ambiguity on the final stage of a most important wheel alignment here.