holy shit no . this is terrible adviceif you don ' t scrape and brush , the basestructure won ' t be able to do it ' s job . that is , to channel water away from underneath you . always always always scrape and brush . you can get away with just some fibertex if you don ' t want to invest in some brushes , but i would at least get a soft nylon brush , good allround tool . source shop tech race tech and i ski on my own tunes , and proper structuring , edging and waxing to include scraping and brushing will make a solid difference . <| sep |> No , the old link cable still works on a GBA or GBASP . You just need the old cable , not the new one . <| sep |> In both models the volume reduction is twice as much as the weight reduction , making the new models more dense , this means that the components inside are what ' s keeping them heavy not the chassis , so the smaller batteries are the ones to thank for the weight savings no that it ' s 3 mm thinner . 2012 13 MBP 31 . 4 x 21 . 9 x 1 . 80 1 . 24 L at 1 . 58 kg 1 . 27 kgL 2016 13 MBP 30 . 4 x 21 . 2 x 1 . 49 0 . 96 L at 1 . 37 kg 1 . 43 kgLVolume and weight reduction 29 % and 15 % respectively 2012 15 MBP 35 . 9 x 24 . 7 x 1 . 80 1 . 6 L at 2 . 04 kg 1 . 28 kgL 2016 15 MBP 34 . 9 x 24 . 1 x 1 . 55 1 . 3 L at 1 . 83 kg 1 . 40 kgLVolume and weight reduction 23 % and 12 % respectively