Nittaku Fastarc series - IntroductionThe Fastarc rubbers are Nittaku's flagship seriesand come in four different flavors, i.e., C-1, G-1, P1,and S-1. These "Made in Germany" rubbers havebeen around for a couple of years and were addedto the official List of Approved Racket Coverings(LARC) in 2010 (G-1 and S-1), 2012 (C-1), and 2014(P-1). Nittaku markets these as "grip first" (G-1),"power first" (P-1), "speed first" (S-1), and "catchfirst" (C-1).Nittaku provides relatively detailed informationabout the architecture of the rubbers:The G-1 comes with a 47.5 degree orange sponge,a "grip-type" topsheet with wide pips and narrowpip spacing (13 pips per 5 cm in the horizontaldirection and 22 pips per 5 cm in the verticaldirection), and speed and spin ratings of 15.00and 12.50, respectively.The P-1 has a lemon-colored 47.5 degree sponge,a "plastic-ready" topsheet with narrow pips andintermediate pip separation (13 pips per 5 cm inthe horizontal direction and 21 pips per 5 cm inthe vertical direction), and speed and spin ratingsof 15.50 and 12.25, respectively.The S-1 has a cream-colored 45 degree sponge, a"speed-type" topsheet that features narrow pipsand widely separated pips (11 pips per 5 cm in thehorizontal direction and 19 pips per 5 cm in thevertical direction), and speed and spin ratings of15.50 and 11.75, respectively.The C-1 has a cream-colored 45 degree spongesimilar to S-1 and a "catch-grip" type topsheet withwide pips and narrow pip separation similar to G-1(13 pips per 5 cm in the horizontal direction and22 pips per 5 cm in the vertical direction), andspeed and spin ratings of 15.25 and 12.25,respectively.SnP-5